What is the Greatest Common Factor of 40643 and 40661?

Greatest common factor (GCF) of 40643 and 40661 is 1.

GCF(40643,40661) = 1

We will now calculate the prime factors of 40643 and 40661, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40643 and 40661.

How to find the GCF of 40643 and 40661?

We will first find the prime factorization of 40643 and 40661. After we will calculate the factors of 40643 and 40661 and find the biggest common factor number .

Step-1: Prime Factorization of 40643

Prime factors of 40643 are 97, 419. Prime factorization of 40643 in exponential form is:

40643 = 97¹ × 419¹

Step-2: Prime Factorization of 40661

Prime factors of 40661 are 73, 557. Prime factorization of 40661 in exponential form is:

40661 = 73¹ × 557¹

Step-3: Factors of 40643

List of positive integer factors of 40643 that divides 40643 without a remainder.

1, 97, 419

Step-4: Factors of 40661

List of positive integer factors of 40661 that divides 40643 without a remainder.

1, 73, 557

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40643 and 40661. The biggest common factor number is the GCF number.
So the greatest common factor 40643 and 40661 is 1.

Also check out the Least Common Multiple of 40643 and 40661