What is the Least Common Multiple of 13647 and 13661?

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 of 13647 and 13661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13647 and 13661, than apply into the LCM equation.

GCF(13647,13661) = 1
LCM(13647,13661) = ( 13647 × 13661) / 1
LCM(13647,13661) = 186431667 / 1
LCM(13647,13661) = 186431667

Least Common Multiple (LCM) of 13647 and 13661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13647 and 13661. First we will calculate the prime factors of 13647 and 13661.

Prime Factorization of 13647

Prime Factorization of 13661

Now multiplying the highest exponent prime factors to calculate the LCM of 13647 and 13661.

LCM(13647,13661) = 3¹ × 4549¹ × 19¹ × 719¹
LCM(13647,13661) = 186431667