What is the Least Common Multiple of 70728 and 70748?

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 70728 and 70748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70728 and 70748, than apply into the LCM equation.

GCF(70728,70748) = 4
LCM(70728,70748) = ( 70728 × 70748) / 4
LCM(70728,70748) = 5003864544 / 4
LCM(70728,70748) = 1250966136

Least Common Multiple (LCM) of 70728 and 70748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70728 and 70748. First we will calculate the prime factors of 70728 and 70748.

Prime Factorization of 70728

Prime Factorization of 70748

Now multiplying the highest exponent prime factors to calculate the LCM of 70728 and 70748.

LCM(70728,70748) = 2³ × 3¹ × 7¹ × 421¹ × 23¹ × 769¹
LCM(70728,70748) = 1250966136