What is the Greatest Common Factor of 55908 and 55920?

Greatest common factor (GCF) of 55908 and 55920 is 12.

GCF(55908,55920) = 12

We will now calculate the prime factors of 55908 and 55920, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55908 and 55920.

How to find the GCF of 55908 and 55920?

We will first find the prime factorization of 55908 and 55920. After we will calculate the factors of 55908 and 55920 and find the biggest common factor number .

Step-1: Prime Factorization of 55908

Prime factors of 55908 are 2, 3, 1553. Prime factorization of 55908 in exponential form is:

55908 = 2² × 3² × 1553¹

Step-2: Prime Factorization of 55920

Prime factors of 55920 are 2, 3, 5, 233. Prime factorization of 55920 in exponential form is:

55920 = 2⁴ × 3¹ × 5¹ × 233¹

Step-3: Factors of 55908

List of positive integer factors of 55908 that divides 55908 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 1553, 3106, 4659, 6212, 9318, 13977, 18636, 27954

Step-4: Factors of 55920

List of positive integer factors of 55920 that divides 55908 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 233, 240, 466, 699, 932, 1165, 1398, 1864, 2330, 2796, 3495, 3728, 4660, 5592, 6990, 9320, 11184, 13980, 18640, 27960

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55908 and 55920. The biggest common factor number is the GCF number.
So the greatest common factor 55908 and 55920 is 12.

Also check out the Least Common Multiple of 55908 and 55920