What is the Greatest Common Factor of 90970 and 90978?

Greatest common factor (GCF) of 90970 and 90978 is 2.

GCF(90970,90978) = 2

We will now calculate the prime factors of 90970 and 90978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90970 and 90978.

How to find the GCF of 90970 and 90978?

We will first find the prime factorization of 90970 and 90978. After we will calculate the factors of 90970 and 90978 and find the biggest common factor number .

Step-1: Prime Factorization of 90970

Prime factors of 90970 are 2, 5, 11, 827. Prime factorization of 90970 in exponential form is:

90970 = 2¹ × 5¹ × 11¹ × 827¹

Step-2: Prime Factorization of 90978

Prime factors of 90978 are 2, 3, 59, 257. Prime factorization of 90978 in exponential form is:

90978 = 2¹ × 3¹ × 59¹ × 257¹

Step-3: Factors of 90970

List of positive integer factors of 90970 that divides 90970 without a remainder.

1, 2, 5, 10, 11, 22, 55, 110, 827, 1654, 4135, 8270, 9097, 18194, 45485

Step-4: Factors of 90978

List of positive integer factors of 90978 that divides 90970 without a remainder.

1, 2, 3, 6, 59, 118, 177, 257, 354, 514, 771, 1542, 15163, 30326, 45489

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90970 and 90978. The biggest common factor number is the GCF number.
So the greatest common factor 90970 and 90978 is 2.

Also check out the Least Common Multiple of 90970 and 90978