What is the Greatest Common Factor of 40491 and 40506?

Greatest common factor (GCF) of 40491 and 40506 is 3.

GCF(40491,40506) = 3

We will now calculate the prime factors of 40491 and 40506, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40491 and 40506.

How to find the GCF of 40491 and 40506?

We will first find the prime factorization of 40491 and 40506. After we will calculate the factors of 40491 and 40506 and find the biggest common factor number .

Step-1: Prime Factorization of 40491

Prime factors of 40491 are 3, 11, 409. Prime factorization of 40491 in exponential form is:

40491 = 3² × 11¹ × 409¹

Step-2: Prime Factorization of 40506

Prime factors of 40506 are 2, 3, 43, 157. Prime factorization of 40506 in exponential form is:

40506 = 2¹ × 3¹ × 43¹ × 157¹

Step-3: Factors of 40491

List of positive integer factors of 40491 that divides 40491 without a remainder.

1, 3, 9, 11, 33, 99, 409, 1227, 3681, 4499, 13497

Step-4: Factors of 40506

List of positive integer factors of 40506 that divides 40491 without a remainder.

1, 2, 3, 6, 43, 86, 129, 157, 258, 314, 471, 942, 6751, 13502, 20253

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40491 and 40506. The biggest common factor number is the GCF number.
So the greatest common factor 40491 and 40506 is 3.

Also check out the Least Common Multiple of 40491 and 40506