What is the Greatest Common Factor of 70638 and 70655?

Greatest common factor (GCF) of 70638 and 70655 is 1.

GCF(70638,70655) = 1

We will now calculate the prime factors of 70638 and 70655, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70638 and 70655.

How to find the GCF of 70638 and 70655?

We will first find the prime factorization of 70638 and 70655. After we will calculate the factors of 70638 and 70655 and find the biggest common factor number .

Step-1: Prime Factorization of 70638

Prime factors of 70638 are 2, 3, 61, 193. Prime factorization of 70638 in exponential form is:

70638 = 2¹ × 3¹ × 61¹ × 193¹

Step-2: Prime Factorization of 70655

Prime factors of 70655 are 5, 13, 1087. Prime factorization of 70655 in exponential form is:

70655 = 5¹ × 13¹ × 1087¹

Step-3: Factors of 70638

List of positive integer factors of 70638 that divides 70638 without a remainder.

1, 2, 3, 6, 61, 122, 183, 193, 366, 386, 579, 1158, 11773, 23546, 35319

Step-4: Factors of 70655

List of positive integer factors of 70655 that divides 70638 without a remainder.

1, 5, 13, 65, 1087, 5435, 14131

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70638 and 70655. The biggest common factor number is the GCF number.
So the greatest common factor 70638 and 70655 is 1.

Also check out the Least Common Multiple of 70638 and 70655