What is the Least Common Multiple of 99780 and 99784?

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 99780 and 99784 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 99780 and 99784, than apply into the LCM equation.

GCF(99780,99784) = 4
LCM(99780,99784) = ( 99780 × 99784) / 4
LCM(99780,99784) = 9956447520 / 4
LCM(99780,99784) = 2489111880

Least Common Multiple (LCM) of 99780 and 99784 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 99780 and 99784. First we will calculate the prime factors of 99780 and 99784.

Prime Factorization of 99780

Prime Factorization of 99784

Now multiplying the highest exponent prime factors to calculate the LCM of 99780 and 99784.

LCM(99780,99784) = 2³ × 3¹ × 5¹ × 1663¹ × 12473¹
LCM(99780,99784) = 2489111880