What is the Greatest Common Factor of 15470 and 15478?

Greatest common factor (GCF) of 15470 and 15478 is 2.

GCF(15470,15478) = 2

We will now calculate the prime factors of 15470 and 15478, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15470 and 15478.

How to find the GCF of 15470 and 15478?

We will first find the prime factorization of 15470 and 15478. After we will calculate the factors of 15470 and 15478 and find the biggest common factor number .

Step-1: Prime Factorization of 15470

Prime factors of 15470 are 2, 5, 7, 13, 17. Prime factorization of 15470 in exponential form is:

15470 = 2¹ × 5¹ × 7¹ × 13¹ × 17¹

Step-2: Prime Factorization of 15478

Prime factors of 15478 are 2, 71, 109. Prime factorization of 15478 in exponential form is:

15478 = 2¹ × 71¹ × 109¹

Step-3: Factors of 15470

List of positive integer factors of 15470 that divides 15470 without a remainder.

1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 65, 70, 85, 91, 119, 130, 170, 182, 221, 238, 442, 455, 595, 910, 1105, 1190, 1547, 2210, 3094, 7735

Step-4: Factors of 15478

List of positive integer factors of 15478 that divides 15470 without a remainder.

1, 2, 71, 109, 142, 218, 7739

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15470 and 15478. The biggest common factor number is the GCF number.
So the greatest common factor 15470 and 15478 is 2.

Also check out the Least Common Multiple of 15470 and 15478