What is the Least Common Multiple of 99978 and 99992?

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 99978 and 99992 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 99978 and 99992, than apply into the LCM equation.

GCF(99978,99992) = 2
LCM(99978,99992) = ( 99978 × 99992) / 2
LCM(99978,99992) = 9997000176 / 2
LCM(99978,99992) = 4998500088

Least Common Multiple (LCM) of 99978 and 99992 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 99978 and 99992. First we will calculate the prime factors of 99978 and 99992.

Prime Factorization of 99978

Prime Factorization of 99992

Now multiplying the highest exponent prime factors to calculate the LCM of 99978 and 99992.

LCM(99978,99992) = 2³ × 3¹ × 19¹ × 877¹ × 29¹ × 431¹
LCM(99978,99992) = 4998500088