What is the Greatest Common Factor of 70970 and 70986?

Greatest common factor (GCF) of 70970 and 70986 is 2.

GCF(70970,70986) = 2

We will now calculate the prime factors of 70970 and 70986, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70970 and 70986.

How to find the GCF of 70970 and 70986?

We will first find the prime factorization of 70970 and 70986. After we will calculate the factors of 70970 and 70986 and find the biggest common factor number .

Step-1: Prime Factorization of 70970

Prime factors of 70970 are 2, 5, 47, 151. Prime factorization of 70970 in exponential form is:

70970 = 2¹ × 5¹ × 47¹ × 151¹

Step-2: Prime Factorization of 70986

Prime factors of 70986 are 2, 3, 11831. Prime factorization of 70986 in exponential form is:

70986 = 2¹ × 3¹ × 11831¹

Step-3: Factors of 70970

List of positive integer factors of 70970 that divides 70970 without a remainder.

1, 2, 5, 10, 47, 94, 151, 235, 302, 470, 755, 1510, 7097, 14194, 35485

Step-4: Factors of 70986

List of positive integer factors of 70986 that divides 70970 without a remainder.

1, 2, 3, 6, 11831, 23662, 35493

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70970 and 70986. The biggest common factor number is the GCF number.
So the greatest common factor 70970 and 70986 is 2.

Also check out the Least Common Multiple of 70970 and 70986