What is the Greatest Common Factor of 70421 and 70425?

Greatest common factor (GCF) of 70421 and 70425 is 1.

GCF(70421,70425) = 1

We will now calculate the prime factors of 70421 and 70425, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70421 and 70425.

How to find the GCF of 70421 and 70425?

We will first find the prime factorization of 70421 and 70425. After we will calculate the factors of 70421 and 70425 and find the biggest common factor number .

Step-1: Prime Factorization of 70421

Prime factors of 70421 are 13, 5417. Prime factorization of 70421 in exponential form is:

70421 = 13¹ × 5417¹

Step-2: Prime Factorization of 70425

Prime factors of 70425 are 3, 5, 313. Prime factorization of 70425 in exponential form is:

70425 = 3² × 5² × 313¹

Step-3: Factors of 70421

List of positive integer factors of 70421 that divides 70421 without a remainder.

1, 13, 5417

Step-4: Factors of 70425

List of positive integer factors of 70425 that divides 70421 without a remainder.

1, 3, 5, 9, 15, 25, 45, 75, 225, 313, 939, 1565, 2817, 4695, 7825, 14085, 23475

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70421 and 70425. The biggest common factor number is the GCF number.
So the greatest common factor 70421 and 70425 is 1.

Also check out the Least Common Multiple of 70421 and 70425