What is the Greatest Common Factor of 30947 and 30956?

Greatest common factor (GCF) of 30947 and 30956 is 1.

GCF(30947,30956) = 1

We will now calculate the prime factors of 30947 and 30956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30947 and 30956.

How to find the GCF of 30947 and 30956?

We will first find the prime factorization of 30947 and 30956. After we will calculate the factors of 30947 and 30956 and find the biggest common factor number .

Step-1: Prime Factorization of 30947

Prime factors of 30947 are 7, 4421. Prime factorization of 30947 in exponential form is:

30947 = 7¹ × 4421¹

Step-2: Prime Factorization of 30956

Prime factors of 30956 are 2, 71, 109. Prime factorization of 30956 in exponential form is:

30956 = 2² × 71¹ × 109¹

Step-3: Factors of 30947

List of positive integer factors of 30947 that divides 30947 without a remainder.

1, 7, 4421

Step-4: Factors of 30956

List of positive integer factors of 30956 that divides 30947 without a remainder.

1, 2, 4, 71, 109, 142, 218, 284, 436, 7739, 15478

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30947 and 30956. The biggest common factor number is the GCF number.
So the greatest common factor 30947 and 30956 is 1.

Also check out the Least Common Multiple of 30947 and 30956