What is the Greatest Common Factor of 27643 and 27661?

Greatest common factor (GCF) of 27643 and 27661 is 1.

GCF(27643,27661) = 1

We will now calculate the prime factors of 27643 and 27661, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27643 and 27661.

How to find the GCF of 27643 and 27661?

We will first find the prime factorization of 27643 and 27661. After we will calculate the factors of 27643 and 27661 and find the biggest common factor number .

Step-1: Prime Factorization of 27643

Prime factors of 27643 are 7, 11, 359. Prime factorization of 27643 in exponential form is:

27643 = 7¹ × 11¹ × 359¹

Step-2: Prime Factorization of 27661

Prime factors of 27661 are 139, 199. Prime factorization of 27661 in exponential form is:

27661 = 139¹ × 199¹

Step-3: Factors of 27643

List of positive integer factors of 27643 that divides 27643 without a remainder.

1, 7, 11, 77, 359, 2513, 3949

Step-4: Factors of 27661

List of positive integer factors of 27661 that divides 27643 without a remainder.

1, 139, 199

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27643 and 27661. The biggest common factor number is the GCF number.
So the greatest common factor 27643 and 27661 is 1.

Also check out the Least Common Multiple of 27643 and 27661