What is the Least Common Multiple of 71648 and 71668?

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 71648 and 71668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71648 and 71668, than apply into the LCM equation.

GCF(71648,71668) = 4
LCM(71648,71668) = ( 71648 × 71668) / 4
LCM(71648,71668) = 5134868864 / 4
LCM(71648,71668) = 1283717216

Least Common Multiple (LCM) of 71648 and 71668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71648 and 71668. First we will calculate the prime factors of 71648 and 71668.

Prime Factorization of 71648

Prime Factorization of 71668

Now multiplying the highest exponent prime factors to calculate the LCM of 71648 and 71668.

LCM(71648,71668) = 2⁵ × 2239¹ × 19¹ × 23¹ × 41¹
LCM(71648,71668) = 1283717216