What is the Least Common Multiple of 11643 and 11655?

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 11643 and 11655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11643 and 11655, than apply into the LCM equation.

GCF(11643,11655) = 3
LCM(11643,11655) = ( 11643 × 11655) / 3
LCM(11643,11655) = 135699165 / 3
LCM(11643,11655) = 45233055

Least Common Multiple (LCM) of 11643 and 11655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11643 and 11655. First we will calculate the prime factors of 11643 and 11655.

Prime Factorization of 11643

Prime Factorization of 11655

Now multiplying the highest exponent prime factors to calculate the LCM of 11643 and 11655.

LCM(11643,11655) = 3² × 3881¹ × 5¹ × 7¹ × 37¹
LCM(11643,11655) = 45233055