What is the Greatest Common Factor of 30945 and 30956?

Greatest common factor (GCF) of 30945 and 30956 is 1.

GCF(30945,30956) = 1

We will now calculate the prime factors of 30945 and 30956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30945 and 30956.

How to find the GCF of 30945 and 30956?

We will first find the prime factorization of 30945 and 30956. After we will calculate the factors of 30945 and 30956 and find the biggest common factor number .

Step-1: Prime Factorization of 30945

Prime factors of 30945 are 3, 5, 2063. Prime factorization of 30945 in exponential form is:

30945 = 3¹ × 5¹ × 2063¹

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 30945

List of positive integer factors of 30945 that divides 30945 without a remainder.

1, 3, 5, 15, 2063, 6189, 10315

Step-4: Factors of 30956

List of positive integer factors of 30956 that divides 30945 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 30945 and 30956. The biggest common factor number is the GCF number.
So the greatest common factor 30945 and 30956 is 1.

Also check out the Least Common Multiple of 30945 and 30956