What is the Least Common Multiple of 40015 and 40030?

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 40015 and 40030 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40015 and 40030, than apply into the LCM equation.

GCF(40015,40030) = 5
LCM(40015,40030) = ( 40015 × 40030) / 5
LCM(40015,40030) = 1601800450 / 5
LCM(40015,40030) = 320360090

Least Common Multiple (LCM) of 40015 and 40030 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40015 and 40030. First we will calculate the prime factors of 40015 and 40030.

Prime Factorization of 40015

Prime Factorization of 40030

Now multiplying the highest exponent prime factors to calculate the LCM of 40015 and 40030.

LCM(40015,40030) = 5¹ × 53¹ × 151¹ × 2¹ × 4003¹
LCM(40015,40030) = 320360090