What is the Greatest Common Factor of 70615 and 70620?

Greatest common factor (GCF) of 70615 and 70620 is 5.

GCF(70615,70620) = 5

We will now calculate the prime factors of 70615 and 70620, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70615 and 70620.

How to find the GCF of 70615 and 70620?

We will first find the prime factorization of 70615 and 70620. After we will calculate the factors of 70615 and 70620 and find the biggest common factor number .

Step-1: Prime Factorization of 70615

Prime factors of 70615 are 5, 29, 487. Prime factorization of 70615 in exponential form is:

70615 = 5¹ × 29¹ × 487¹

Step-2: Prime Factorization of 70620

Prime factors of 70620 are 2, 3, 5, 11, 107. Prime factorization of 70620 in exponential form is:

70620 = 2² × 3¹ × 5¹ × 11¹ × 107¹

Step-3: Factors of 70615

List of positive integer factors of 70615 that divides 70615 without a remainder.

1, 5, 29, 145, 487, 2435, 14123

Step-4: Factors of 70620

List of positive integer factors of 70620 that divides 70615 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 107, 110, 132, 165, 214, 220, 321, 330, 428, 535, 642, 660, 1070, 1177, 1284, 1605, 2140, 2354, 3210, 3531, 4708, 5885, 6420, 7062, 11770, 14124, 17655, 23540, 35310

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70615 and 70620. The biggest common factor number is the GCF number.
So the greatest common factor 70615 and 70620 is 5.

Also check out the Least Common Multiple of 70615 and 70620