What is the Greatest Common Factor of 87978 and 87992?

Greatest common factor (GCF) of 87978 and 87992 is 2.

GCF(87978,87992) = 2

We will now calculate the prime factors of 87978 and 87992, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87978 and 87992.

How to find the GCF of 87978 and 87992?

We will first find the prime factorization of 87978 and 87992. After we will calculate the factors of 87978 and 87992 and find the biggest common factor number .

Step-1: Prime Factorization of 87978

Prime factors of 87978 are 2, 3, 11, 31, 43. Prime factorization of 87978 in exponential form is:

87978 = 2¹ × 3¹ × 11¹ × 31¹ × 43¹

Step-2: Prime Factorization of 87992

Prime factors of 87992 are 2, 17, 647. Prime factorization of 87992 in exponential form is:

87992 = 2³ × 17¹ × 647¹

Step-3: Factors of 87978

List of positive integer factors of 87978 that divides 87978 without a remainder.

1, 2, 3, 6, 11, 22, 31, 33, 43, 62, 66, 86, 93, 129, 186, 258, 341, 473, 682, 946, 1023, 1333, 1419, 2046, 2666, 2838, 3999, 7998, 14663, 29326, 43989

Step-4: Factors of 87992

List of positive integer factors of 87992 that divides 87978 without a remainder.

1, 2, 4, 8, 17, 34, 68, 136, 647, 1294, 2588, 5176, 10999, 21998, 43996

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87978 and 87992. The biggest common factor number is the GCF number.
So the greatest common factor 87978 and 87992 is 2.

Also check out the Least Common Multiple of 87978 and 87992