What is the Least Common Multiple of 40005 and 40023?

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 40005 and 40023 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40005 and 40023, than apply into the LCM equation.

GCF(40005,40023) = 9
LCM(40005,40023) = ( 40005 × 40023) / 9
LCM(40005,40023) = 1601120115 / 9
LCM(40005,40023) = 177902235

Least Common Multiple (LCM) of 40005 and 40023 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40005 and 40023. First we will calculate the prime factors of 40005 and 40023.

Prime Factorization of 40005

Prime Factorization of 40023

Now multiplying the highest exponent prime factors to calculate the LCM of 40005 and 40023.

LCM(40005,40023) = 3² × 5¹ × 7¹ × 127¹ × 4447¹
LCM(40005,40023) = 177902235