What is the Greatest Common Factor of 82978 and 82990?

Greatest common factor (GCF) of 82978 and 82990 is 2.

GCF(82978,82990) = 2

We will now calculate the prime factors of 82978 and 82990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 82978 and 82990.

How to find the GCF of 82978 and 82990?

We will first find the prime factorization of 82978 and 82990. After we will calculate the factors of 82978 and 82990 and find the biggest common factor number .

Step-1: Prime Factorization of 82978

Prime factors of 82978 are 2, 7, 5927. Prime factorization of 82978 in exponential form is:

82978 = 2¹ × 7¹ × 5927¹

Step-2: Prime Factorization of 82990

Prime factors of 82990 are 2, 5, 43, 193. Prime factorization of 82990 in exponential form is:

82990 = 2¹ × 5¹ × 43¹ × 193¹

Step-3: Factors of 82978

List of positive integer factors of 82978 that divides 82978 without a remainder.

1, 2, 7, 14, 5927, 11854, 41489

Step-4: Factors of 82990

List of positive integer factors of 82990 that divides 82978 without a remainder.

1, 2, 5, 10, 43, 86, 193, 215, 386, 430, 965, 1930, 8299, 16598, 41495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 82978 and 82990. The biggest common factor number is the GCF number.
So the greatest common factor 82978 and 82990 is 2.

Also check out the Least Common Multiple of 82978 and 82990