What is the Greatest Common Factor of 42591 and 42603?

Greatest common factor (GCF) of 42591 and 42603 is 3.

GCF(42591,42603) = 3

We will now calculate the prime factors of 42591 and 42603, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42591 and 42603.

How to find the GCF of 42591 and 42603?

We will first find the prime factorization of 42591 and 42603. After we will calculate the factors of 42591 and 42603 and find the biggest common factor number .

Step-1: Prime Factorization of 42591

Prime factors of 42591 are 3, 14197. Prime factorization of 42591 in exponential form is:

42591 = 3¹ × 14197¹

Step-2: Prime Factorization of 42603

Prime factors of 42603 are 3, 11, 1291. Prime factorization of 42603 in exponential form is:

42603 = 3¹ × 11¹ × 1291¹

Step-3: Factors of 42591

List of positive integer factors of 42591 that divides 42591 without a remainder.

1, 3, 14197

Step-4: Factors of 42603

List of positive integer factors of 42603 that divides 42591 without a remainder.

1, 3, 11, 33, 1291, 3873, 14201

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42591 and 42603. The biggest common factor number is the GCF number.
So the greatest common factor 42591 and 42603 is 3.

Also check out the Least Common Multiple of 42591 and 42603