What is the Greatest Common Factor of 40972 and 40978?

Greatest common factor (GCF) of 40972 and 40978 is 2.

GCF(40972,40978) = 2

We will now calculate the prime factors of 40972 and 40978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40972 and 40978.

How to find the GCF of 40972 and 40978?

We will first find the prime factorization of 40972 and 40978. After we will calculate the factors of 40972 and 40978 and find the biggest common factor number .

Step-1: Prime Factorization of 40972

Prime factors of 40972 are 2, 10243. Prime factorization of 40972 in exponential form is:

40972 = 2² × 10243¹

Step-2: Prime Factorization of 40978

Prime factors of 40978 are 2, 7, 2927. Prime factorization of 40978 in exponential form is:

40978 = 2¹ × 7¹ × 2927¹

Step-3: Factors of 40972

List of positive integer factors of 40972 that divides 40972 without a remainder.

1, 2, 4, 10243, 20486

Step-4: Factors of 40978

List of positive integer factors of 40978 that divides 40972 without a remainder.

1, 2, 7, 14, 2927, 5854, 20489

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40972 and 40978. The biggest common factor number is the GCF number.
So the greatest common factor 40972 and 40978 is 2.

Also check out the Least Common Multiple of 40972 and 40978