What is the Greatest Common Factor of 15772 and 15778?

Greatest common factor (GCF) of 15772 and 15778 is 2.

GCF(15772,15778) = 2

We will now calculate the prime factors of 15772 and 15778, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15772 and 15778.

How to find the GCF of 15772 and 15778?

We will first find the prime factorization of 15772 and 15778. After we will calculate the factors of 15772 and 15778 and find the biggest common factor number .

Step-1: Prime Factorization of 15772

Prime factors of 15772 are 2, 3943. Prime factorization of 15772 in exponential form is:

15772 = 2² × 3943¹

Step-2: Prime Factorization of 15778

Prime factors of 15778 are 2, 7, 23. Prime factorization of 15778 in exponential form is:

15778 = 2¹ × 7³ × 23¹

Step-3: Factors of 15772

List of positive integer factors of 15772 that divides 15772 without a remainder.

1, 2, 4, 3943, 7886

Step-4: Factors of 15778

List of positive integer factors of 15778 that divides 15772 without a remainder.

1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 343, 686, 1127, 2254, 7889

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15772 and 15778. The biggest common factor number is the GCF number.
So the greatest common factor 15772 and 15778 is 2.

Also check out the Least Common Multiple of 15772 and 15778