What is the Least Common Multiple of 85406 and 85422?

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 85406 and 85422 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85406 and 85422, than apply into the LCM equation.

GCF(85406,85422) = 2
LCM(85406,85422) = ( 85406 × 85422) / 2
LCM(85406,85422) = 7295551332 / 2
LCM(85406,85422) = 3647775666

Least Common Multiple (LCM) of 85406 and 85422 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85406 and 85422. First we will calculate the prime factors of 85406 and 85422.

Prime Factorization of 85406

Prime Factorization of 85422

Now multiplying the highest exponent prime factors to calculate the LCM of 85406 and 85422.

LCM(85406,85422) = 2¹ × 42703¹ × 3¹ × 23¹ × 619¹
LCM(85406,85422) = 3647775666