What is the Greatest Common Factor of 15562 and 15578?

Greatest common factor (GCF) of 15562 and 15578 is 2.

GCF(15562,15578) = 2

We will now calculate the prime factors of 15562 and 15578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15562 and 15578.

How to find the GCF of 15562 and 15578?

We will first find the prime factorization of 15562 and 15578. After we will calculate the factors of 15562 and 15578 and find the biggest common factor number .

Step-1: Prime Factorization of 15562

Prime factors of 15562 are 2, 31, 251. Prime factorization of 15562 in exponential form is:

15562 = 2¹ × 31¹ × 251¹

Step-2: Prime Factorization of 15578

Prime factors of 15578 are 2, 7789. Prime factorization of 15578 in exponential form is:

15578 = 2¹ × 7789¹

Step-3: Factors of 15562

List of positive integer factors of 15562 that divides 15562 without a remainder.

1, 2, 31, 62, 251, 502, 7781

Step-4: Factors of 15578

List of positive integer factors of 15578 that divides 15562 without a remainder.

1, 2, 7789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15562 and 15578. The biggest common factor number is the GCF number.
So the greatest common factor 15562 and 15578 is 2.

Also check out the Least Common Multiple of 15562 and 15578