What is the Greatest Common Factor of 66961 and 66970?

Greatest common factor (GCF) of 66961 and 66970 is 1.

GCF(66961,66970) = 1

We will now calculate the prime factors of 66961 and 66970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66961 and 66970.

How to find the GCF of 66961 and 66970?

We will first find the prime factorization of 66961 and 66970. After we will calculate the factors of 66961 and 66970 and find the biggest common factor number .

Step-1: Prime Factorization of 66961

Prime factors of 66961 are 29, 2309. Prime factorization of 66961 in exponential form is:

66961 = 29¹ × 2309¹

Step-2: Prime Factorization of 66970

Prime factors of 66970 are 2, 5, 37, 181. Prime factorization of 66970 in exponential form is:

66970 = 2¹ × 5¹ × 37¹ × 181¹

Step-3: Factors of 66961

List of positive integer factors of 66961 that divides 66961 without a remainder.

1, 29, 2309

Step-4: Factors of 66970

List of positive integer factors of 66970 that divides 66961 without a remainder.

1, 2, 5, 10, 37, 74, 181, 185, 362, 370, 905, 1810, 6697, 13394, 33485

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66961 and 66970. The biggest common factor number is the GCF number.
So the greatest common factor 66961 and 66970 is 1.

Also check out the Least Common Multiple of 66961 and 66970