What is the Greatest Common Factor of 70638 and 70645?

Greatest common factor (GCF) of 70638 and 70645 is 1.

GCF(70638,70645) = 1

We will now calculate the prime factors of 70638 and 70645, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70638 and 70645.

How to find the GCF of 70638 and 70645?

We will first find the prime factorization of 70638 and 70645. After we will calculate the factors of 70638 and 70645 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 70645

Prime factors of 70645 are 5, 71, 199. Prime factorization of 70645 in exponential form is:

70645 = 5¹ × 71¹ × 199¹

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 70645

List of positive integer factors of 70645 that divides 70638 without a remainder.

1, 5, 71, 199, 355, 995, 14129

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70638 and 70645. The biggest common factor number is the GCF number.
So the greatest common factor 70638 and 70645 is 1.

Also check out the Least Common Multiple of 70638 and 70645