# Least Common Multiple of 6 and 13

Least common multiple (LCM) of 6 and 13 is 78.

LCM(6,13) = 78

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.

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## Least Common Multiple of 6 and 13 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6 and 13, than apply into the LCM equation.

GCF(6,13) = 1
LCM(6,13) = ( 6 × 13) / 1
LCM(6,13) = 78 / 1
LCM(6,13) = 78

## Least Common Multiple (LCM) of 6 and 13 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6 and 13. First we will calculate the prime factors of 6 and 13.

### Prime Factorization of 6

Prime factors of 6 are 2, 3. Prime factorization of 6 in exponential form is:

6 = 21 × 31

### Prime Factorization of 13

Prime factors of 13 are 13. Prime factorization of 13 in exponential form is:

13 = 131

Now multiplying the highest exponent prime factors to calculate the LCM of 6 and 13.

LCM(6,13) = 21 × 31 × 131
LCM(6,13) = 78

#### Related Least Common Multiples of 13

##### Recent Comments
Anand 2019-05-30 05:43:31

It was good

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