What is the Greatest Common Factor of 3938 and 3956?

Greatest common factor (GCF) of 3938 and 3956 is 2.

GCF(3938,3956) = 2

We will now calculate the prime factors of 3938 and 3956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3938 and 3956.

How to find the GCF of 3938 and 3956?

We will first find the prime factorization of 3938 and 3956. After we will calculate the factors of 3938 and 3956 and find the biggest common factor number .

Step-1: Prime Factorization of 3938

Prime factors of 3938 are 2, 11, 179. Prime factorization of 3938 in exponential form is:

3938 = 2¹ × 11¹ × 179¹

Step-2: Prime Factorization of 3956

Prime factors of 3956 are 2, 23, 43. Prime factorization of 3956 in exponential form is:

3956 = 2² × 23¹ × 43¹

Step-3: Factors of 3938

List of positive integer factors of 3938 that divides 3938 without a remainder.

1, 2, 11, 22, 179, 358, 1969

Step-4: Factors of 3956

List of positive integer factors of 3956 that divides 3938 without a remainder.

1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3938 and 3956. The biggest common factor number is the GCF number.
So the greatest common factor 3938 and 3956 is 2.

Also check out the Least Common Multiple of 3938 and 3956