What is the Least Common Multiple of 86438 and 86457?

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 86438 and 86457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86438 and 86457, than apply into the LCM equation.

GCF(86438,86457) = 1
LCM(86438,86457) = ( 86438 × 86457) / 1
LCM(86438,86457) = 7473170166 / 1
LCM(86438,86457) = 7473170166

Least Common Multiple (LCM) of 86438 and 86457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86438 and 86457. First we will calculate the prime factors of 86438 and 86457.

Prime Factorization of 86438

Prime Factorization of 86457

Now multiplying the highest exponent prime factors to calculate the LCM of 86438 and 86457.

LCM(86438,86457) = 2¹ × 11¹ × 3929¹ × 3¹ × 7¹ × 23¹ × 179¹
LCM(86438,86457) = 7473170166