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What is the Least Common Multiple of 13683 and 13689?

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 13683 and 13689 is 62435529.

LCM(13683,13689) = 62435529

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Least Common Multiple of 13683 and 13689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13683 and 13689, than apply into the LCM equation.

GCF(13683,13689) = 3
LCM(13683,13689) = ( 13683 × 13689) / 3
LCM(13683,13689) = 187306587 / 3
LCM(13683,13689) = 62435529

Least Common Multiple (LCM) of 13683 and 13689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13683 and 13689. First we will calculate the prime factors of 13683 and 13689.

Prime Factorization of 13683

Prime factors of 13683 are 3, 4561. Prime factorization of 13683 in exponential form is:

13683 = 31 × 45611

Prime Factorization of 13689

Prime factors of 13689 are 3, 13. Prime factorization of 13689 in exponential form is:

13689 = 34 × 132

Now multiplying the highest exponent prime factors to calculate the LCM of 13683 and 13689.

LCM(13683,13689) = 34 × 45611 × 132
LCM(13683,13689) = 62435529