What is the Least Common Multiple of 8 and 192?

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 8 and 192 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8 and 192, than apply into the LCM equation.

GCF(8,192) = 8
LCM(8,192) = ( 8 × 192) / 8
LCM(8,192) = 1536 / 8
LCM(8,192) = 192

Least Common Multiple (LCM) of 8 and 192 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8 and 192. First we will calculate the prime factors of 8 and 192.

Prime Factorization of 8

Prime Factorization of 192

Now multiplying the highest exponent prime factors to calculate the LCM of 8 and 192.

LCM(8,192) = 2⁶ × 3¹
LCM(8,192) = 192