What is the Greatest Common Factor of 39956 and 39974?

Greatest common factor (GCF) of 39956 and 39974 is 2.

GCF(39956,39974) = 2

We will now calculate the prime factors of 39956 and 39974, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39956 and 39974.

How to find the GCF of 39956 and 39974?

We will first find the prime factorization of 39956 and 39974. After we will calculate the factors of 39956 and 39974 and find the biggest common factor number .

Step-1: Prime Factorization of 39956

Prime factors of 39956 are 2, 7, 1427. Prime factorization of 39956 in exponential form is:

39956 = 2² × 7¹ × 1427¹

Step-2: Prime Factorization of 39974

Prime factors of 39974 are 2, 11, 23, 79. Prime factorization of 39974 in exponential form is:

39974 = 2¹ × 11¹ × 23¹ × 79¹

Step-3: Factors of 39956

List of positive integer factors of 39956 that divides 39956 without a remainder.

1, 2, 4, 7, 14, 28, 1427, 2854, 5708, 9989, 19978

Step-4: Factors of 39974

List of positive integer factors of 39974 that divides 39956 without a remainder.

1, 2, 11, 22, 23, 46, 79, 158, 253, 506, 869, 1738, 1817, 3634, 19987

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39956 and 39974. The biggest common factor number is the GCF number.
So the greatest common factor 39956 and 39974 is 2.

Also check out the Least Common Multiple of 39956 and 39974