What is the Least Common Multiple of 42172 and 42183?

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 42172 and 42183 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42172 and 42183, than apply into the LCM equation.

GCF(42172,42183) = 1
LCM(42172,42183) = ( 42172 × 42183) / 1
LCM(42172,42183) = 1778941476 / 1
LCM(42172,42183) = 1778941476

Least Common Multiple (LCM) of 42172 and 42183 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42172 and 42183. First we will calculate the prime factors of 42172 and 42183.

Prime Factorization of 42172

Prime Factorization of 42183

Now multiplying the highest exponent prime factors to calculate the LCM of 42172 and 42183.

LCM(42172,42183) = 2² × 13¹ × 811¹ × 3² × 43¹ × 109¹
LCM(42172,42183) = 1778941476