What is the Greatest Common Factor of 17972 and 17978?

Greatest common factor (GCF) of 17972 and 17978 is 2.

GCF(17972,17978) = 2

We will now calculate the prime factors of 17972 and 17978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17972 and 17978.

How to find the GCF of 17972 and 17978?

We will first find the prime factorization of 17972 and 17978. After we will calculate the factors of 17972 and 17978 and find the biggest common factor number .

Step-1: Prime Factorization of 17972

Prime factors of 17972 are 2, 4493. Prime factorization of 17972 in exponential form is:

17972 = 2² × 4493¹

Step-2: Prime Factorization of 17978

Prime factors of 17978 are 2, 89, 101. Prime factorization of 17978 in exponential form is:

17978 = 2¹ × 89¹ × 101¹

Step-3: Factors of 17972

List of positive integer factors of 17972 that divides 17972 without a remainder.

1, 2, 4, 4493, 8986

Step-4: Factors of 17978

List of positive integer factors of 17978 that divides 17972 without a remainder.

1, 2, 89, 101, 178, 202, 8989

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17972 and 17978. The biggest common factor number is the GCF number.
So the greatest common factor 17972 and 17978 is 2.

Also check out the Least Common Multiple of 17972 and 17978