Factors of 157

2. Steps to find factors of 157 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 157 using the division method, follow these steps:

• Step 1. Start dividing 157 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 157, which is 157. Divide 157 by 157 to obtain the quotient (1).
  157 ÷ 157 = 1
• Step 3. Repeat step 1 with the obtained quotient (1).

So, the prime factorization of 157 is, 157 = 157.

Method 2: Factor Tree Method

We can follow the same procedure using the factor tree of 157 as shown below:

So, the prime factorization of 157 is, 157 = 157.

3. Find factors of 157 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 157 would be the two numbers which, when multiplied, give 157 as the result.

The following table represents the calculation of factors of 157 in pairs:

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 157. They are called negative pair factors.

Hence, the negative pairs of 157 would be ( -1 , -157 ) , .

How do you explain factors?

In mathematics, a factor is a number or also it can be an algebraic expression that divides another number or any expression completely and that too without leaving any remainder. A factor of a number can be positive or negative.

Properties of factors

• Every factor of a number is an exact divisor of that number, example 1, 157 are exact divisors of 157.
• Every number other than 1 has at least two factors, namely the number itself and 1.
• Each number is a factor of itself. Eg. 157 is a factor of itself.
• 1 is a factor of every number. Eg. 1 is a factor of 157.

Frequently Asked Questions

• Is 157 a perfect square?

  No 157 is not a perfect square.

• What are factors of 157?

  Factors of 157 are 1, 157.

• Which is greatest factor of 157?

  The greatest factor of 157 is 1.

• What is the sum of all factors of 157?

  The sum of all factors of 157 is 158.

• What are multiples of 157?

  First five multiples of 157 are 314, 471, 628, 785.

• What is the greatest prime factors of 157?

  The greatest prime factor of 157 is 157.

• What are six multiples of 157?

  First five multiples of 157 are 314, 471, 628, 785, 942, 1099.

• What is prime factorization of 157?

  Prime factorization of 157 is 157.

• Is 157 a whole number?

  Yes 157 is a whole number.

Examples of Factors