What is the Least Common Multiple of 1478 and 1487?

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 1478 and 1487 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1478 and 1487, than apply into the LCM equation.

GCF(1478,1487) = 1
LCM(1478,1487) = ( 1478 × 1487) / 1
LCM(1478,1487) = 2197786 / 1
LCM(1478,1487) = 2197786

Least Common Multiple (LCM) of 1478 and 1487 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1478 and 1487. First we will calculate the prime factors of 1478 and 1487.

Prime Factorization of 1478

Prime Factorization of 1487

Now multiplying the highest exponent prime factors to calculate the LCM of 1478 and 1487.

LCM(1478,1487) = 2¹ × 739¹ × 1487¹
LCM(1478,1487) = 2197786