What is the Least Common Multiple of 81328 and 81332?

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 81332 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 81332, than apply into the LCM equation.

GCF(81328,81332) = 4
LCM(81328,81332) = ( 81328 × 81332) / 4
LCM(81328,81332) = 6614568896 / 4
LCM(81328,81332) = 1653642224

Least Common Multiple (LCM) of 81328 and 81332 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81328 and 81332. First we will calculate the prime factors of 81328 and 81332.

Prime Factorization of 81328

Prime Factorization of 81332

Now multiplying the highest exponent prime factors to calculate the LCM of 81328 and 81332.

LCM(81328,81332) = 2⁴ × 13¹ × 17¹ × 23¹ × 20333¹
LCM(81328,81332) = 1653642224