What is the Least Common Multiple of 89974 and 89978?

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 89974 and 89978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89974 and 89978, than apply into the LCM equation.

GCF(89974,89978) = 2
LCM(89974,89978) = ( 89974 × 89978) / 2
LCM(89974,89978) = 8095680572 / 2
LCM(89974,89978) = 4047840286

Least Common Multiple (LCM) of 89974 and 89978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89974 and 89978. First we will calculate the prime factors of 89974 and 89978.

Prime Factorization of 89974

Prime Factorization of 89978

Now multiplying the highest exponent prime factors to calculate the LCM of 89974 and 89978.

LCM(89974,89978) = 2¹ × 44987¹ × 7¹ × 6427¹
LCM(89974,89978) = 4047840286