What is the Greatest Common Factor of 89961 and 89980?

Greatest common factor (GCF) of 89961 and 89980 is 1.

GCF(89961,89980) = 1

We will now calculate the prime factors of 89961 and 89980, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 89961 and 89980.

How to find the GCF of 89961 and 89980?

We will first find the prime factorization of 89961 and 89980. After we will calculate the factors of 89961 and 89980 and find the biggest common factor number .

Step-1: Prime Factorization of 89961

Prime factors of 89961 are 3, 157, 191. Prime factorization of 89961 in exponential form is:

89961 = 3¹ × 157¹ × 191¹

Step-2: Prime Factorization of 89980

Prime factors of 89980 are 2, 5, 11, 409. Prime factorization of 89980 in exponential form is:

89980 = 2² × 5¹ × 11¹ × 409¹

Step-3: Factors of 89961

List of positive integer factors of 89961 that divides 89961 without a remainder.

1, 3, 157, 191, 471, 573, 29987

Step-4: Factors of 89980

List of positive integer factors of 89980 that divides 89961 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 409, 818, 1636, 2045, 4090, 4499, 8180, 8998, 17996, 22495, 44990

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 89961 and 89980. The biggest common factor number is the GCF number.
So the greatest common factor 89961 and 89980 is 1.

Also check out the Least Common Multiple of 89961 and 89980