What is the Least Common Multiple of 84438 and 84457?

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 84438 and 84457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84438 and 84457, than apply into the LCM equation.

GCF(84438,84457) = 1
LCM(84438,84457) = ( 84438 × 84457) / 1
LCM(84438,84457) = 7131380166 / 1
LCM(84438,84457) = 7131380166

Least Common Multiple (LCM) of 84438 and 84457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84438 and 84457. First we will calculate the prime factors of 84438 and 84457.

Prime Factorization of 84438

Prime Factorization of 84457

Now multiplying the highest exponent prime factors to calculate the LCM of 84438 and 84457.

LCM(84438,84457) = 2¹ × 3² × 4691¹ × 84457¹
LCM(84438,84457) = 7131380166