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What is the Greatest Common Factor of 72956 and 72972?

Greatest common factor (GCF) of 72956 and 72972 is 4.

GCF(72956,72972) = 4

We will now calculate the prime factors of 72956 and 72972, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72956 and 72972.

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How to find the GCF of 72956 and 72972?

We will first find the prime factorization of 72956 and 72972. After we will calculate the factors of 72956 and 72972 and find the biggest common factor number .

Step-1: Prime Factorization of 72956

Prime factors of 72956 are 2, 13, 23, 61. Prime factorization of 72956 in exponential form is:

72956 = 22 × 131 × 231 × 611

Step-2: Prime Factorization of 72972

Prime factors of 72972 are 2, 3, 2027. Prime factorization of 72972 in exponential form is:

72972 = 22 × 32 × 20271

Step-3: Factors of 72956

List of positive integer factors of 72956 that divides 72956 without a remainder.

1, 2, 4, 13, 23, 26, 46, 52, 61, 92, 122, 244, 299, 598, 793, 1196, 1403, 1586, 2806, 3172, 5612, 18239, 36478

Step-4: Factors of 72972

List of positive integer factors of 72972 that divides 72956 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 2027, 4054, 6081, 8108, 12162, 18243, 24324, 36486

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72956 and 72972. The biggest common factor number is the GCF number.
So the greatest common factor 72956 and 72972 is 4.

Also check out the Least Common Multiple of 72956 and 72972