What is the Greatest Common Factor of 30945 and 30951?

Greatest common factor (GCF) of 30945 and 30951 is 3.

GCF(30945,30951) = 3

We will now calculate the prime factors of 30945 and 30951, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30945 and 30951.

How to find the GCF of 30945 and 30951?

We will first find the prime factorization of 30945 and 30951. After we will calculate the factors of 30945 and 30951 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 30951

Prime factors of 30951 are 3, 19, 181. Prime factorization of 30951 in exponential form is:

30951 = 3² × 19¹ × 181¹

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 30951

List of positive integer factors of 30951 that divides 30945 without a remainder.

1, 3, 9, 19, 57, 171, 181, 543, 1629, 3439, 10317

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30945 and 30951. The biggest common factor number is the GCF number.
So the greatest common factor 30945 and 30951 is 3.

Also check out the Least Common Multiple of 30945 and 30951