# Least Common Multiple of 63 and 67

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 63 and 67 is 4221.

LCM(63,67) = 4221

LCM Calculator and

## Least Common Multiple of 63 and 67 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63 and 67, than apply into the LCM equation.

GCF(63,67) = 1
LCM(63,67) = ( 63 × 67) / 1
LCM(63,67) = 4221 / 1
LCM(63,67) = 4221

## Least Common Multiple (LCM) of 63 and 67 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63 and 67. First we will calculate the prime factors of 63 and 67.

### Prime Factorization of 63

Prime factors of 63 are 3, 7. Prime factorization of 63 in exponential form is:

63 = 32 × 71

### Prime Factorization of 67

Prime factors of 67 are 67. Prime factorization of 67 in exponential form is:

67 = 671

Now multiplying the highest exponent prime factors to calculate the LCM of 63 and 67.

LCM(63,67) = 32 × 71 × 671
LCM(63,67) = 4221