Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, and 1680

How to find factors of a number

1. Steps to find factors of 1680 using Division Method

Example: Find factors of 1680

  • Divide 1680 by 1: 1680 ÷ 1 : Remainder = 0
  • Divide 1680 by 2: 1680 ÷ 2 : Remainder = 0
  • Divide 1680 by 3: 1680 ÷ 3 : Remainder = 0
  • Divide 1680 by 4: 1680 ÷ 4 : Remainder = 0
  • Divide 1680 by 5: 1680 ÷ 5 : Remainder = 0
  • Divide 1680 by 6: 1680 ÷ 6 : Remainder = 0
  • Divide 1680 by 7: 1680 ÷ 7 : Remainder = 0
  • Divide 1680 by 8: 1680 ÷ 8 : Remainder = 0
  • Divide 1680 by 10: 1680 ÷ 10 : Remainder = 0
  • Divide 1680 by 12: 1680 ÷ 12 : Remainder = 0
  • Divide 1680 by 14: 1680 ÷ 14 : Remainder = 0
  • Divide 1680 by 15: 1680 ÷ 15 : Remainder = 0
  • Divide 1680 by 16: 1680 ÷ 16 : Remainder = 0
  • Divide 1680 by 20: 1680 ÷ 20 : Remainder = 0
  • Divide 1680 by 21: 1680 ÷ 21 : Remainder = 0
  • Divide 1680 by 24: 1680 ÷ 24 : Remainder = 0
  • Divide 1680 by 28: 1680 ÷ 28 : Remainder = 0
  • Divide 1680 by 30: 1680 ÷ 30 : Remainder = 0
  • Divide 1680 by 35: 1680 ÷ 35 : Remainder = 0
  • Divide 1680 by 40: 1680 ÷ 40 : Remainder = 0
  • Divide 1680 by 42: 1680 ÷ 42 : Remainder = 0
  • Divide 1680 by 48: 1680 ÷ 48 : Remainder = 0
  • Divide 1680 by 56: 1680 ÷ 56 : Remainder = 0
  • Divide 1680 by 60: 1680 ÷ 60 : Remainder = 0
  • Divide 1680 by 70: 1680 ÷ 70 : Remainder = 0
  • Divide 1680 by 80: 1680 ÷ 80 : Remainder = 0
  • Divide 1680 by 84: 1680 ÷ 84 : Remainder = 0
  • Divide 1680 by 105: 1680 ÷ 105 : Remainder = 0
  • Divide 1680 by 112: 1680 ÷ 112 : Remainder = 0
  • Divide 1680 by 120: 1680 ÷ 120 : Remainder = 0
  • Divide 1680 by 140: 1680 ÷ 140 : Remainder = 0
  • Divide 1680 by 168: 1680 ÷ 168 : Remainder = 0
  • Divide 1680 by 210: 1680 ÷ 210 : Remainder = 0
  • Divide 1680 by 240: 1680 ÷ 240 : Remainder = 0
  • Divide 1680 by 280: 1680 ÷ 280 : Remainder = 0
  • Divide 1680 by 336: 1680 ÷ 336 : Remainder = 0
  • Divide 1680 by 420: 1680 ÷ 420 : Remainder = 0
  • Divide 1680 by 560: 1680 ÷ 560 : Remainder = 0
  • Divide 1680 by 840: 1680 ÷ 840 : Remainder = 0
  • Divide 1680 by 1680: 1680 ÷ 1680 : Remainder = 0

Hence, Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, and 1680

2. Steps to find factors of 1680 using Prime Factorization

A prime number is a number that has exactly two factors, 1 and the number itself. Prime factorization of a number means breaking down of the number into the form of products of its prime factors.

There are two different methods that can be used for the prime factorization.

Method 1: Division Method

To find the primefactors of 1680 using the division method, follow these steps:

  • Step 1. Start dividing 1680 by the smallest prime number, i.e., 2, 3, 5, and so on. Find the smallest prime factor of the number.
  • Step 2. After finding the smallest prime factor of the number 1680, which is 2. Divide 1680 by 2 to obtain the quotient (840).
    1680 ÷ 2 = 840
  • Step 3. Repeat step 1 with the obtained quotient (840).
    840 ÷ 2 = 420
    420 ÷ 2 = 210
    210 ÷ 2 = 105
    105 ÷ 3 = 35
    35 ÷ 5 = 7
    7 ÷ 7 = 1

So, the prime factorization of 1680 is, 1680 = 2 x 2 x 2 x 2 x 3 x 5 x 7.

Method 2: Factor Tree Method

We can follow the same procedure using the factor tree of 1680 as shown below:

So, the prime factorization of 1680 is, 1680 = 2 x 2 x 2 x 2 x 3 x 5 x 7.

3. Find factors of 1680 in Pairs

Pair factors of a number are any two numbers which, which on multiplying together, give that number as a result. The pair factors of 1680 would be the two numbers which, when multiplied, give 1680 as the result.

The following table represents the calculation of factors of 1680 in pairs:

Factor Pair Pair Factorization
1 and 1680 1 x 1680 = 1680
2 and 840 2 x 840 = 1680
3 and 560 3 x 560 = 1680
4 and 420 4 x 420 = 1680
5 and 336 5 x 336 = 1680
6 and 280 6 x 280 = 1680
7 and 240 7 x 240 = 1680
8 and 210 8 x 210 = 1680
10 and 168 10 x 168 = 1680
12 and 140 12 x 140 = 1680
14 and 120 14 x 120 = 1680
15 and 112 15 x 112 = 1680
16 and 105 16 x 105 = 1680
20 and 84 20 x 84 = 1680
21 and 80 21 x 80 = 1680
24 and 70 24 x 70 = 1680
28 and 60 28 x 60 = 1680
30 and 56 30 x 56 = 1680
35 and 48 35 x 48 = 1680
40 and 42 40 x 42 = 1680

Since the product of two negative numbers gives a positive number, the product of the negative values of both the numbers in a pair factor will also give 1680. They are called negative pair factors.

Hence, the negative pairs of 1680 would be ( -1 , -1680 ) , ( -2 , -840 ) , ( -3 , -560 ) , ( -4 , -420 ) , ( -5 , -336 ) , ( -6 , -280 ) , ( -7 , -240 ) , ( -8 , -210 ) , ( -10 , -168 ) , ( -12 , -140 ) , ( -14 , -120 ) , ( -15 , -112 ) , ( -16 , -105 ) , ( -20 , -84 ) , ( -21 , -80 ) , ( -24 , -70 ) , ( -28 , -60 ) , ( -30 , -56 ) , ( -35 , -48 ) and ( -40 , -42 ) .

What are factors?

In mathematics, a factor is that number which divides into another number exactly, without leaving a remainder. A factor of a number can be positive or negative.

Properties of factors

  • Each number is a factor of itself. Eg. 1680 is a factor of itself.
  • 1 is a factor of every number. Eg. 1 is a factor of 1680.
  • Every number is a factor of zero (0), since 1680 x 0 = 0.
  • Every number other than 1 has at least two factors, namely the number itself and 1.
  • Every factor of a number is an exact divisor of that number, example 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680 are exact divisors of 1680.
  • Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680. Each factor divides 1680 without leaving a remainder.
  • Every factor of a number is less than or equal to the number, eg. 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680 are all less than or equal to 1680.

Frequently Asked Questions

  • How do you find factors of a negative number? ( eg. -1680 )?

    Factors of -1680 are -1, -2, -3, -4, -5, -6, -7, -8, -10, -12, -14, -15, -16, -20, -21, -24, -28, -30, -35, -40, -42, -48, -56, -60, -70, -80, -84, -105, -112, -120, -140, -168, -210, -240, -280, -336, -420, -560, -840, -1680.

  • What is the sum of all factors of 1680?

    The sum of all factors of 1680 is 5952.

  • What is prime factorization of 1680?

    Prime factorization of 1680 is 2 x 2 x 2 x 2 x 3 x 5 x 7.

  • What are the pair factors of 1680?

    Pair factors of 1680 are (1,1680), (2,840), (3,560), (4,420), (5,336), (6,280), (7,240), (8,210), (10,168), (12,140), (14,120), (15,112), (16,105), (20,84), (21,80), (24,70), (28,60), (30,56), (35,48), (40,42).

  • What are six multiples of 1680?

    First five multiples of 1680 are 3360, 5040, 6720, 8400, 10080, 11760.

  • Is 1680 a whole number?

    Yes 1680 is a whole number.

  • Which is the smallest prime factor of 1680?

    Smallest prime factor of 1680 is 2.

  • What are five multiples of 1680?

    First five multiples of 1680 are 3360, 5040, 6720, 8400, 10080.

  • Write all factors of 1680?

    Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680.

Examples of Factors

Joey wants to write all the prime factors of 1680 in exponential form, but he doesn't know how to do so can you assist him in this task?

Prime factors of 1680 are 2, 2, 2, 2, 3, 5, 7.
So in exponential form it can be written as 24 x 3 x 5 x 7.

How many factors are there for 1680?

Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680.
So there are in total 40 factors.

Kevin has been asked to write 39 factor(s) of 1680. Can you predict the answer?

39 factor(s) of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840.

Sammy is puzzled while calculating the prime factors of 1680. Can you help him find them?

Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680.
Prime factors of 1680 are 2, 2, 2, 2, 3, 5, 7

What is prime factorization of 1680?

Prime factorization of 1680 is 2 x 2 x 2 x 2 x 3 x 5 x 7 = 24 x 3 x 5 x 7.

Ariel has been assigned the task to find the product of all the prime factors of 1680. Can you help her?

Prime factors of 1680 are 2, 2, 2, 2, 3, 5, 7.
Hence, the product of prime factors of 210.

Can you help Rubel to find out the product of the even factors of 1680?

Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680.
Even factors of 1680 are 2, 4, 6, 8, 10, 12, 14, 16, 20, 24, 28, 30, 40, 42, 48, 56, 60, 70, 80, 84, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680.
Hence, product of even factors of 1680 is; 2 x 4 x 6 x 8 x 10 x 12 x 14 x 16 x 20 x 24 x 28 x 30 x 40 x 42 x 48 x 56 x 60 x 70 x 80 x 84 x 112 x 120 x 140 x 168 x 210 x 240 x 280 x 336 x 420 x 560 x 840 x 1680 = 2.6389334508755776e+56.