# Greatest Common Factor of 21 and 41

Greatest common factor (GCF) of 21 and 41 is 1.

GCF(21,41) = 1

We will now calculate the prime factors of 21 and 41, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21 and 41.

GCF Calculator and

## Prime Factorization of 21

Prime factors of 21 are 3, 7. Prime factorization of 21 in exponential form is:

21 = 31 × 71

## Prime Factorization of 41

Prime factors of 41 are 41. Prime factorization of 41 in exponential form is:

41 = 411

### Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1, 3, 7

### Factors of 41

List of positive integer factors of 41 that divides 21 without a remainder.

1

### Greatest Common Factor

We found the factors and prime factorization of 21 and 41. The biggest common factor number is the GCF number.
So the greatest common factor 21 and 41 is 1.

Also check out the Least Common Multiple of 21 and 41