What is the Greatest Common Factor of 30620 and 30625?

Greatest common factor (GCF) of 30620 and 30625 is 5.

GCF(30620,30625) = 5

We will now calculate the prime factors of 30620 and 30625, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30620 and 30625.

How to find the GCF of 30620 and 30625?

We will first find the prime factorization of 30620 and 30625. After we will calculate the factors of 30620 and 30625 and find the biggest common factor number .

Step-1: Prime Factorization of 30620

Prime factors of 30620 are 2, 5, 1531. Prime factorization of 30620 in exponential form is:

30620 = 2² × 5¹ × 1531¹

Step-2: Prime Factorization of 30625

Prime factors of 30625 are 5, 7. Prime factorization of 30625 in exponential form is:

30625 = 5⁴ × 7²

Step-3: Factors of 30620

List of positive integer factors of 30620 that divides 30620 without a remainder.

1, 2, 4, 5, 10, 20, 1531, 3062, 6124, 7655, 15310

Step-4: Factors of 30625

List of positive integer factors of 30625 that divides 30620 without a remainder.

1, 5, 7, 25, 35, 49, 125, 175, 245, 625, 875, 1225, 4375, 6125

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30620 and 30625. The biggest common factor number is the GCF number.
So the greatest common factor 30620 and 30625 is 5.

Also check out the Least Common Multiple of 30620 and 30625