What is the Greatest Common Factor of 47978 and 47986?

Greatest common factor (GCF) of 47978 and 47986 is 2.

GCF(47978,47986) = 2

We will now calculate the prime factors of 47978 and 47986, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47978 and 47986.

How to find the GCF of 47978 and 47986?

We will first find the prime factorization of 47978 and 47986. After we will calculate the factors of 47978 and 47986 and find the biggest common factor number .

Step-1: Prime Factorization of 47978

Prime factors of 47978 are 2, 7, 23, 149. Prime factorization of 47978 in exponential form is:

47978 = 2¹ × 7¹ × 23¹ × 149¹

Step-2: Prime Factorization of 47986

Prime factors of 47986 are 2, 23993. Prime factorization of 47986 in exponential form is:

47986 = 2¹ × 23993¹

Step-3: Factors of 47978

List of positive integer factors of 47978 that divides 47978 without a remainder.

1, 2, 7, 14, 23, 46, 149, 161, 298, 322, 1043, 2086, 3427, 6854, 23989

Step-4: Factors of 47986

List of positive integer factors of 47986 that divides 47978 without a remainder.

1, 2, 23993

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47978 and 47986. The biggest common factor number is the GCF number.
So the greatest common factor 47978 and 47986 is 2.

Also check out the Least Common Multiple of 47978 and 47986