What is the Greatest Common Factor of 66980 and 66987?

Greatest common factor (GCF) of 66980 and 66987 is 1.

GCF(66980,66987) = 1

We will now calculate the prime factors of 66980 and 66987, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66980 and 66987.

How to find the GCF of 66980 and 66987?

We will first find the prime factorization of 66980 and 66987. After we will calculate the factors of 66980 and 66987 and find the biggest common factor number .

Step-1: Prime Factorization of 66980

Prime factors of 66980 are 2, 5, 17, 197. Prime factorization of 66980 in exponential form is:

66980 = 2² × 5¹ × 17¹ × 197¹

Step-2: Prime Factorization of 66987

Prime factors of 66987 are 3, 827. Prime factorization of 66987 in exponential form is:

66987 = 3⁴ × 827¹

Step-3: Factors of 66980

List of positive integer factors of 66980 that divides 66980 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1970, 3349, 3940, 6698, 13396, 16745, 33490

Step-4: Factors of 66987

List of positive integer factors of 66987 that divides 66980 without a remainder.

1, 3, 9, 27, 81, 827, 2481, 7443, 22329

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66980 and 66987. The biggest common factor number is the GCF number.
So the greatest common factor 66980 and 66987 is 1.

Also check out the Least Common Multiple of 66980 and 66987