What is the Greatest Common Factor of 91854 and 91872?

Greatest common factor (GCF) of 91854 and 91872 is 18.

GCF(91854,91872) = 18

We will now calculate the prime factors of 91854 and 91872, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91854 and 91872.

How to find the GCF of 91854 and 91872?

We will first find the prime factorization of 91854 and 91872. After we will calculate the factors of 91854 and 91872 and find the biggest common factor number .

Step-1: Prime Factorization of 91854

Prime factors of 91854 are 2, 3, 7. Prime factorization of 91854 in exponential form is:

91854 = 2¹ × 3⁸ × 7¹

Step-2: Prime Factorization of 91872

Prime factors of 91872 are 2, 3, 11, 29. Prime factorization of 91872 in exponential form is:

91872 = 2⁵ × 3² × 11¹ × 29¹

Step-3: Factors of 91854

List of positive integer factors of 91854 that divides 91854 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 729, 1134, 1458, 1701, 2187, 3402, 4374, 5103, 6561, 10206, 13122, 15309, 30618, 45927

Step-4: Factors of 91872

List of positive integer factors of 91872 that divides 91854 without a remainder.

1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 29, 32, 33, 36, 44, 48, 58, 66, 72, 87, 88, 96, 99, 116, 132, 144, 174, 176, 198, 232, 261, 264, 288, 319, 348, 352, 396, 464, 522, 528, 638, 696, 792, 928, 957, 1044, 1056, 1276, 1392, 1584, 1914, 2088, 2552, 2784, 2871, 3168, 3828, 4176, 5104, 5742, 7656, 8352, 10208, 11484, 15312, 22968, 30624, 45936

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91854 and 91872. The biggest common factor number is the GCF number.
So the greatest common factor 91854 and 91872 is 18.

Also check out the Least Common Multiple of 91854 and 91872