What is the Greatest Common Factor of 70215 and 70230?

Greatest common factor (GCF) of 70215 and 70230 is 15.

GCF(70215,70230) = 15

We will now calculate the prime factors of 70215 and 70230, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70215 and 70230.

How to find the GCF of 70215 and 70230?

We will first find the prime factorization of 70215 and 70230. After we will calculate the factors of 70215 and 70230 and find the biggest common factor number .

Step-1: Prime Factorization of 70215

Prime factors of 70215 are 3, 5, 31, 151. Prime factorization of 70215 in exponential form is:

70215 = 3¹ × 5¹ × 31¹ × 151¹

Step-2: Prime Factorization of 70230

Prime factors of 70230 are 2, 3, 5, 2341. Prime factorization of 70230 in exponential form is:

70230 = 2¹ × 3¹ × 5¹ × 2341¹

Step-3: Factors of 70215

List of positive integer factors of 70215 that divides 70215 without a remainder.

1, 3, 5, 15, 31, 93, 151, 155, 453, 465, 755, 2265, 4681, 14043, 23405

Step-4: Factors of 70230

List of positive integer factors of 70230 that divides 70215 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2341, 4682, 7023, 11705, 14046, 23410, 35115

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70215 and 70230. The biggest common factor number is the GCF number.
So the greatest common factor 70215 and 70230 is 15.

Also check out the Least Common Multiple of 70215 and 70230