# Prime Factors of 1645

Prime Factors of 1645 are 5, 7, and 47

#### How to find prime factors of a number

 1.   Prime Factorization of 1645 by Division Method 2.   Prime Factorization of 1645 by Factor Tree Method 3.   Definition of Prime Factors 4.   Frequently Asked Questions

#### Steps to find Prime Factors of 1645 by Division Method

To find the primefactors of 1645 using the division method, follow these steps:

• Step 1. Start dividing 1645 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 1645, which is 5. Divide 1645 by 5 to obtain the quotient (329).
1645 ÷ 5 = 329
• Step 3. Repeat step 1 with the obtained quotient (329).
329 ÷ 7 = 47
47 ÷ 47 = 1

So, the prime factorization of 1645 is, 1645 = 5 x 7 x 47.

#### Steps to find Prime Factors of 1645 by Factor Tree Method

We can follow the same procedure using the factor tree of 1645 as shown below:

So, the prime factorization of 1645 is, 1645 = 5 x 7 x 47.

#### Definition of Prime Factors?

In mathematics, prime numbers are defined as all those whole numbers greater than 1 that have only two factors, i.e. 1 and the number itself. When we express any number as the product of these prime numbers than these prime numbers become prime factors of that number. Eg- Prime Factors of 1645 are 5 x 7 x 47.

#### Properties of Prime Factors

• Prime factors are the set of factors that are unique to the number given.
• 2 is the only even prime factor any number can have.
• Two prime factors are always coprime to each other.
• 1 is neither a prime number nor a composite number and also 1 is the factor of every given number. So, 1 is the factor of 1645 but not a prime factor of 1645.

• Which is the smallest prime factor of 1645?

Smallest prime factor of 1645 is 5.

• Is 1645 a perfect square?

No 1645 is not a perfect square.

• What is the prime factorization of 1645?

Prime factorization of 1645 is 5 x 7 x 47.

• What are the factors of 1645?

Factors of 1645 are 1 , 5 , 7 , 35 , 47 , 235 , 329 , 1645.

• What is prime factorization of 1645 in exponential form?

Prime factorization of 1645 in exponential form is 5 x 7 x 47.

• Is 1645 a prime number or a composite number?

1645 is a composite number.

• Is 1645 a prime number?

false, 1645 is not a prime number.

• How to find prime factorization of 1645 easily?

To find prime factorization of 1645 easily you can refer to the steps given on this page step by step.

• Which is the largest prime factors of 1645?

The largest prime factor of 1645 is 47.