What is the Greatest Common Factor of 70915 and 70930?

Greatest common factor (GCF) of 70915 and 70930 is 5.

GCF(70915,70930) = 5

We will now calculate the prime factors of 70915 and 70930, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70915 and 70930.

How to find the GCF of 70915 and 70930?

We will first find the prime factorization of 70915 and 70930. After we will calculate the factors of 70915 and 70930 and find the biggest common factor number .

Step-1: Prime Factorization of 70915

Prime factors of 70915 are 5, 13, 1091. Prime factorization of 70915 in exponential form is:

70915 = 5¹ × 13¹ × 1091¹

Step-2: Prime Factorization of 70930

Prime factors of 70930 are 2, 5, 41, 173. Prime factorization of 70930 in exponential form is:

70930 = 2¹ × 5¹ × 41¹ × 173¹

Step-3: Factors of 70915

List of positive integer factors of 70915 that divides 70915 without a remainder.

1, 5, 13, 65, 1091, 5455, 14183

Step-4: Factors of 70930

List of positive integer factors of 70930 that divides 70915 without a remainder.

1, 2, 5, 10, 41, 82, 173, 205, 346, 410, 865, 1730, 7093, 14186, 35465

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70915 and 70930. The biggest common factor number is the GCF number.
So the greatest common factor 70915 and 70930 is 5.

Also check out the Least Common Multiple of 70915 and 70930