What is the Least Common Multiple of 67508 and 67520?

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 67508 and 67520 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67508 and 67520, than apply into the LCM equation.

GCF(67508,67520) = 4
LCM(67508,67520) = ( 67508 × 67520) / 4
LCM(67508,67520) = 4558140160 / 4
LCM(67508,67520) = 1139535040

Least Common Multiple (LCM) of 67508 and 67520 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67508 and 67520. First we will calculate the prime factors of 67508 and 67520.

Prime Factorization of 67508

Prime Factorization of 67520

Now multiplying the highest exponent prime factors to calculate the LCM of 67508 and 67520.

LCM(67508,67520) = 2⁶ × 7¹ × 2411¹ × 5¹ × 211¹
LCM(67508,67520) = 1139535040