What is the Least Common Multiple of 55530 and 55540?

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 55530 and 55540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55530 and 55540, than apply into the LCM equation.

GCF(55530,55540) = 10
LCM(55530,55540) = ( 55530 × 55540) / 10
LCM(55530,55540) = 3084136200 / 10
LCM(55530,55540) = 308413620

Least Common Multiple (LCM) of 55530 and 55540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55530 and 55540. First we will calculate the prime factors of 55530 and 55540.

Prime Factorization of 55530

Prime Factorization of 55540

Now multiplying the highest exponent prime factors to calculate the LCM of 55530 and 55540.

LCM(55530,55540) = 2² × 3² × 5¹ × 617¹ × 2777¹
LCM(55530,55540) = 308413620