What is the Greatest Common Factor of 2940 and 2956?

Greatest common factor (GCF) of 2940 and 2956 is 4.

GCF(2940,2956) = 4

We will now calculate the prime factors of 2940 and 2956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2940 and 2956.

How to find the GCF of 2940 and 2956?

We will first find the prime factorization of 2940 and 2956. After we will calculate the factors of 2940 and 2956 and find the biggest common factor number .

Step-1: Prime Factorization of 2940

Prime factors of 2940 are 2, 3, 5, 7. Prime factorization of 2940 in exponential form is:

2940 = 2² × 3¹ × 5¹ × 7²

Step-2: Prime Factorization of 2956

Prime factors of 2956 are 2, 739. Prime factorization of 2956 in exponential form is:

2956 = 2² × 739¹

Step-3: Factors of 2940

List of positive integer factors of 2940 that divides 2940 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470

Step-4: Factors of 2956

List of positive integer factors of 2956 that divides 2940 without a remainder.

1, 2, 4, 739, 1478

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2940 and 2956. The biggest common factor number is the GCF number.
So the greatest common factor 2940 and 2956 is 4.

Also check out the Least Common Multiple of 2940 and 2956