What is the Least Common Multiple of 74971 and 74978?

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 74971 and 74978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74971 and 74978, than apply into the LCM equation.

GCF(74971,74978) = 1
LCM(74971,74978) = ( 74971 × 74978) / 1
LCM(74971,74978) = 5621175638 / 1
LCM(74971,74978) = 5621175638

Least Common Multiple (LCM) of 74971 and 74978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74971 and 74978. First we will calculate the prime factors of 74971 and 74978.

Prime Factorization of 74971

Prime Factorization of 74978

Now multiplying the highest exponent prime factors to calculate the LCM of 74971 and 74978.

LCM(74971,74978) = 13¹ × 73¹ × 79¹ × 2¹ × 37489¹
LCM(74971,74978) = 5621175638