What is the Greatest Common Factor of 30628 and 30642?

Greatest common factor (GCF) of 30628 and 30642 is 2.

GCF(30628,30642) = 2

We will now calculate the prime factors of 30628 and 30642, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30628 and 30642.

How to find the GCF of 30628 and 30642?

We will first find the prime factorization of 30628 and 30642. After we will calculate the factors of 30628 and 30642 and find the biggest common factor number .

Step-1: Prime Factorization of 30628

Prime factors of 30628 are 2, 13, 19, 31. Prime factorization of 30628 in exponential form is:

30628 = 2² × 13¹ × 19¹ × 31¹

Step-2: Prime Factorization of 30642

Prime factors of 30642 are 2, 3, 5107. Prime factorization of 30642 in exponential form is:

30642 = 2¹ × 3¹ × 5107¹

Step-3: Factors of 30628

List of positive integer factors of 30628 that divides 30628 without a remainder.

1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 7657, 15314

Step-4: Factors of 30642

List of positive integer factors of 30642 that divides 30628 without a remainder.

1, 2, 3, 6, 5107, 10214, 15321

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30628 and 30642. The biggest common factor number is the GCF number.
So the greatest common factor 30628 and 30642 is 2.

Also check out the Least Common Multiple of 30628 and 30642