What is the Least Common Multiple of 42000 and 42006?

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 42000 and 42006 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42000 and 42006, than apply into the LCM equation.

GCF(42000,42006) = 6
LCM(42000,42006) = ( 42000 × 42006) / 6
LCM(42000,42006) = 1764252000 / 6
LCM(42000,42006) = 294042000

Least Common Multiple (LCM) of 42000 and 42006 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42000 and 42006. First we will calculate the prime factors of 42000 and 42006.

Prime Factorization of 42000

Prime Factorization of 42006

Now multiplying the highest exponent prime factors to calculate the LCM of 42000 and 42006.

LCM(42000,42006) = 2⁴ × 3¹ × 5³ × 7¹ × 7001¹
LCM(42000,42006) = 294042000