What is the Greatest Common Factor of 91904 and 91908?

Greatest common factor (GCF) of 91904 and 91908 is 4.

GCF(91904,91908) = 4

We will now calculate the prime factors of 91904 and 91908, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91904 and 91908.

How to find the GCF of 91904 and 91908?

We will first find the prime factorization of 91904 and 91908. After we will calculate the factors of 91904 and 91908 and find the biggest common factor number .

Step-1: Prime Factorization of 91904

Prime factors of 91904 are 2, 359. Prime factorization of 91904 in exponential form is:

91904 = 2⁸ × 359¹

Step-2: Prime Factorization of 91908

Prime factors of 91908 are 2, 3, 23, 37. Prime factorization of 91908 in exponential form is:

91908 = 2² × 3³ × 23¹ × 37¹

Step-3: Factors of 91904

List of positive integer factors of 91904 that divides 91904 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128, 256, 359, 718, 1436, 2872, 5744, 11488, 22976, 45952

Step-4: Factors of 91908

List of positive integer factors of 91908 that divides 91904 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 37, 46, 54, 69, 74, 92, 108, 111, 138, 148, 207, 222, 276, 333, 414, 444, 621, 666, 828, 851, 999, 1242, 1332, 1702, 1998, 2484, 2553, 3404, 3996, 5106, 7659, 10212, 15318, 22977, 30636, 45954

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91904 and 91908. The biggest common factor number is the GCF number.
So the greatest common factor 91904 and 91908 is 4.

Also check out the Least Common Multiple of 91904 and 91908