# Prime Factors of 1691

Prime Factors of 1691 are 19 and 89

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

 1.   Prime Factorization of 1691 by Division Method 2.   Prime Factorization of 1691 by Factor Tree Method 3.   Definition of Prime Factors 4.   Frequently Asked Questions

#### Steps to find Prime Factors of 1691 by Division Method

To find the primefactors of 1691 using the division method, follow these steps:

• Step 1. Start dividing 1691 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 1691, which is 19. Divide 1691 by 19 to obtain the quotient (89).
1691 ÷ 19 = 89
• Step 3. Repeat step 1 with the obtained quotient (89).
89 ÷ 89 = 1

So, the prime factorization of 1691 is, 1691 = 19 x 89.

#### Steps to find Prime Factors of 1691 by Factor Tree Method

We can follow the same procedure using the factor tree of 1691 as shown below:

So, the prime factorization of 1691 is, 1691 = 19 x 89.

#### Introduction to Prime Factors?

In mathematics, prime numbers are defined as all those natural numbers greater than 1 that has only two divisors one being number 1 and the other being the number itself. When we express any number as the products of these prime numbers than these prime numbers become prime factors of that number. Eg- Prime Factors of 1691 are 19 x 89.

#### Properties of Prime Factors

• For any given number there is one and only one set of unique prime factors.
• 2 is the only even prime number. So, any given number can have only one even prime factor and that is 2.
• Two prime factors of a given number 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 1691 but not a prime factor of 1691.

• Which is the smallest prime factor of 1691?

Smallest prime factor of 1691 is 19.

• Is 1691 a perfect square?

No 1691 is not a perfect square.

• What is the prime factorization of 1691?

Prime factorization of 1691 is 19 x 89.

• What is prime factorization of 1691 in exponential form?

Prime factorization of 1691 in exponential form is 19 x 89.

• Is 1691 a prime number?

false, 1691 is not a prime number.

• Which is the largest prime factors of 1691?

The largest prime factor of 1691 is 89.

• What is the product of all prime factors of 1691?

Prime factors of 1691 are 19 x 89. Therefore, their product is 1691.

• What is the sum of all odd prime factors of 1691?

Prime factors of 1691 are 19 , 89, out of which 19 , 89 are odd numbers. So, the sum of odd prime factors of 1691 is 19 + 89 = 108.

• What is the product of all odd prime factors of 1691?

Prime factors of 1691 are 19 , 89, out of which 19 , 89 are odd numbers. So, the product of odd prime factors of 1691 is 19 x 89 = 1691.