What is the Greatest Common Factor of 68621 and 68628?

Greatest common factor (GCF) of 68621 and 68628 is 7.

GCF(68621,68628) = 7

We will now calculate the prime factors of 68621 and 68628, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68621 and 68628.

How to find the GCF of 68621 and 68628?

We will first find the prime factorization of 68621 and 68628. After we will calculate the factors of 68621 and 68628 and find the biggest common factor number .

Step-1: Prime Factorization of 68621

Prime factors of 68621 are 7, 9803. Prime factorization of 68621 in exponential form is:

68621 = 7¹ × 9803¹

Step-2: Prime Factorization of 68628

Prime factors of 68628 are 2, 3, 7, 19, 43. Prime factorization of 68628 in exponential form is:

68628 = 2² × 3¹ × 7¹ × 19¹ × 43¹

Step-3: Factors of 68621

List of positive integer factors of 68621 that divides 68621 without a remainder.

1, 7, 9803

Step-4: Factors of 68628

List of positive integer factors of 68628 that divides 68621 without a remainder.

1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 43, 57, 76, 84, 86, 114, 129, 133, 172, 228, 258, 266, 301, 399, 516, 532, 602, 798, 817, 903, 1204, 1596, 1634, 1806, 2451, 3268, 3612, 4902, 5719, 9804, 11438, 17157, 22876, 34314

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68621 and 68628. The biggest common factor number is the GCF number.
So the greatest common factor 68621 and 68628 is 7.

Also check out the Least Common Multiple of 68621 and 68628