What is the Greatest Common Factor of 38860 and 38880?

Greatest common factor (GCF) of 38860 and 38880 is 20.

GCF(38860,38880) = 20

We will now calculate the prime factors of 38860 and 38880, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38860 and 38880.

How to find the GCF of 38860 and 38880?

We will first find the prime factorization of 38860 and 38880. After we will calculate the factors of 38860 and 38880 and find the biggest common factor number .

Step-1: Prime Factorization of 38860

Prime factors of 38860 are 2, 5, 29, 67. Prime factorization of 38860 in exponential form is:

38860 = 2² × 5¹ × 29¹ × 67¹

Step-2: Prime Factorization of 38880

Prime factors of 38880 are 2, 3, 5. Prime factorization of 38880 in exponential form is:

38880 = 2⁵ × 3⁵ × 5¹

Step-3: Factors of 38860

List of positive integer factors of 38860 that divides 38860 without a remainder.

1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 1340, 1943, 3886, 7772, 9715, 19430

Step-4: Factors of 38880

List of positive integer factors of 38880 that divides 38860 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2160, 2430, 2592, 3240, 3888, 4320, 4860, 6480, 7776, 9720, 12960, 19440

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38860 and 38880. The biggest common factor number is the GCF number.
So the greatest common factor 38860 and 38880 is 20.

Also check out the Least Common Multiple of 38860 and 38880