What is the Greatest Common Factor of 1691 and 1697?

Greatest common factor (GCF) of 1691 and 1697 is 1.

GCF(1691,1697) = 1

We will now calculate the prime factors of 1691 and 1697, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1691 and 1697.

How to find the GCF of 1691 and 1697?

We will first find the prime factorization of 1691 and 1697. After we will calculate the factors of 1691 and 1697 and find the biggest common factor number .

Step-1: Prime Factorization of 1691

Prime factors of 1691 are 19, 89. Prime factorization of 1691 in exponential form is:

1691 = 19¹ × 89¹

Step-2: Prime Factorization of 1697

Prime factors of 1697 are 1697. Prime factorization of 1697 in exponential form is:

1697 = 1697¹

Step-3: Factors of 1691

List of positive integer factors of 1691 that divides 1691 without a remainder.

1, 19, 89

Step-4: Factors of 1697

List of positive integer factors of 1697 that divides 1691 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1691 and 1697. The biggest common factor number is the GCF number.
So the greatest common factor 1691 and 1697 is 1.

Also check out the Least Common Multiple of 1691 and 1697