What is the Greatest Common Factor of 71956 and 71970?

Greatest common factor (GCF) of 71956 and 71970 is 2.

GCF(71956,71970) = 2

We will now calculate the prime factors of 71956 and 71970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71956 and 71970.

How to find the GCF of 71956 and 71970?

We will first find the prime factorization of 71956 and 71970. After we will calculate the factors of 71956 and 71970 and find the biggest common factor number .

Step-1: Prime Factorization of 71956

Prime factors of 71956 are 2, 17989. Prime factorization of 71956 in exponential form is:

71956 = 2² × 17989¹

Step-2: Prime Factorization of 71970

Prime factors of 71970 are 2, 3, 5, 2399. Prime factorization of 71970 in exponential form is:

71970 = 2¹ × 3¹ × 5¹ × 2399¹

Step-3: Factors of 71956

List of positive integer factors of 71956 that divides 71956 without a remainder.

1, 2, 4, 17989, 35978

Step-4: Factors of 71970

List of positive integer factors of 71970 that divides 71956 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2399, 4798, 7197, 11995, 14394, 23990, 35985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71956 and 71970. The biggest common factor number is the GCF number.
So the greatest common factor 71956 and 71970 is 2.

Also check out the Least Common Multiple of 71956 and 71970