What is the Greatest Common Factor of 79913 and 79920?

Greatest common factor (GCF) of 79913 and 79920 is 1.

GCF(79913,79920) = 1

We will now calculate the prime factors of 79913 and 79920, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 79913 and 79920.

How to find the GCF of 79913 and 79920?

We will first find the prime factorization of 79913 and 79920. After we will calculate the factors of 79913 and 79920 and find the biggest common factor number .

Step-1: Prime Factorization of 79913

Prime factors of 79913 are 157, 509. Prime factorization of 79913 in exponential form is:

79913 = 157¹ × 509¹

Step-2: Prime Factorization of 79920

Prime factors of 79920 are 2, 3, 5, 37. Prime factorization of 79920 in exponential form is:

79920 = 2⁴ × 3³ × 5¹ × 37¹

Step-3: Factors of 79913

List of positive integer factors of 79913 that divides 79913 without a remainder.

1, 157, 509

Step-4: Factors of 79920

List of positive integer factors of 79920 that divides 79913 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 270, 296, 333, 360, 370, 432, 444, 540, 555, 592, 666, 720, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1776, 1998, 2160, 2220, 2664, 2960, 3330, 3996, 4440, 4995, 5328, 6660, 7992, 8880, 9990, 13320, 15984, 19980, 26640, 39960

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 79913 and 79920. The biggest common factor number is the GCF number.
So the greatest common factor 79913 and 79920 is 1.

Also check out the Least Common Multiple of 79913 and 79920