What is the Greatest Common Factor of 99855 and 99860?

Greatest common factor (GCF) of 99855 and 99860 is 5.

GCF(99855,99860) = 5

We will now calculate the prime factors of 99855 and 99860, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 99855 and 99860.

How to find the GCF of 99855 and 99860?

We will first find the prime factorization of 99855 and 99860. After we will calculate the factors of 99855 and 99860 and find the biggest common factor number .

Step-1: Prime Factorization of 99855

Prime factors of 99855 are 3, 5, 7, 317. Prime factorization of 99855 in exponential form is:

99855 = 3² × 5¹ × 7¹ × 317¹

Step-2: Prime Factorization of 99860

Prime factors of 99860 are 2, 5, 4993. Prime factorization of 99860 in exponential form is:

99860 = 2² × 5¹ × 4993¹

Step-3: Factors of 99855

List of positive integer factors of 99855 that divides 99855 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 317, 951, 1585, 2219, 2853, 4755, 6657, 11095, 14265, 19971, 33285

Step-4: Factors of 99860

List of positive integer factors of 99860 that divides 99855 without a remainder.

1, 2, 4, 5, 10, 20, 4993, 9986, 19972, 24965, 49930

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 99855 and 99860. The biggest common factor number is the GCF number.
So the greatest common factor 99855 and 99860 is 5.

Also check out the Least Common Multiple of 99855 and 99860