What is the Least Common Multiple of 81328 and 81336?

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 81328 and 81336 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81328 and 81336, than apply into the LCM equation.

GCF(81328,81336) = 8
LCM(81328,81336) = ( 81328 × 81336) / 8
LCM(81328,81336) = 6614894208 / 8
LCM(81328,81336) = 826861776

Least Common Multiple (LCM) of 81328 and 81336 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81328 and 81336. First we will calculate the prime factors of 81328 and 81336.

Prime Factorization of 81328

Prime Factorization of 81336

Now multiplying the highest exponent prime factors to calculate the LCM of 81328 and 81336.

LCM(81328,81336) = 2⁴ × 13¹ × 17¹ × 23¹ × 3¹ × 3389¹
LCM(81328,81336) = 826861776