What is the Greatest Common Factor of 31956 and 31970?

Greatest common factor (GCF) of 31956 and 31970 is 2.

GCF(31956,31970) = 2

We will now calculate the prime factors of 31956 and 31970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31956 and 31970.

How to find the GCF of 31956 and 31970?

We will first find the prime factorization of 31956 and 31970. After we will calculate the factors of 31956 and 31970 and find the biggest common factor number .

Step-1: Prime Factorization of 31956

Prime factors of 31956 are 2, 3, 2663. Prime factorization of 31956 in exponential form is:

31956 = 2² × 3¹ × 2663¹

Step-2: Prime Factorization of 31970

Prime factors of 31970 are 2, 5, 23, 139. Prime factorization of 31970 in exponential form is:

31970 = 2¹ × 5¹ × 23¹ × 139¹

Step-3: Factors of 31956

List of positive integer factors of 31956 that divides 31956 without a remainder.

1, 2, 3, 4, 6, 12, 2663, 5326, 7989, 10652, 15978

Step-4: Factors of 31970

List of positive integer factors of 31970 that divides 31956 without a remainder.

1, 2, 5, 10, 23, 46, 115, 139, 230, 278, 695, 1390, 3197, 6394, 15985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31956 and 31970. The biggest common factor number is the GCF number.
So the greatest common factor 31956 and 31970 is 2.

Also check out the Least Common Multiple of 31956 and 31970