What is the Greatest Common Factor of 66940 and 66955?

Greatest common factor (GCF) of 66940 and 66955 is 5.

GCF(66940,66955) = 5

We will now calculate the prime factors of 66940 and 66955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66940 and 66955.

How to find the GCF of 66940 and 66955?

We will first find the prime factorization of 66940 and 66955. After we will calculate the factors of 66940 and 66955 and find the biggest common factor number .

Step-1: Prime Factorization of 66940

Prime factors of 66940 are 2, 5, 3347. Prime factorization of 66940 in exponential form is:

66940 = 2² × 5¹ × 3347¹

Step-2: Prime Factorization of 66955

Prime factors of 66955 are 5, 7, 1913. Prime factorization of 66955 in exponential form is:

66955 = 5¹ × 7¹ × 1913¹

Step-3: Factors of 66940

List of positive integer factors of 66940 that divides 66940 without a remainder.

1, 2, 4, 5, 10, 20, 3347, 6694, 13388, 16735, 33470

Step-4: Factors of 66955

List of positive integer factors of 66955 that divides 66940 without a remainder.

1, 5, 7, 35, 1913, 9565, 13391

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66940 and 66955. The biggest common factor number is the GCF number.
So the greatest common factor 66940 and 66955 is 5.

Also check out the Least Common Multiple of 66940 and 66955