What is the Least Common Multiple of 28122 and 28136?

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 28122 and 28136 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28122 and 28136, than apply into the LCM equation.

GCF(28122,28136) = 2
LCM(28122,28136) = ( 28122 × 28136) / 2
LCM(28122,28136) = 791240592 / 2
LCM(28122,28136) = 395620296

Least Common Multiple (LCM) of 28122 and 28136 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28122 and 28136. First we will calculate the prime factors of 28122 and 28136.

Prime Factorization of 28122

Prime Factorization of 28136

Now multiplying the highest exponent prime factors to calculate the LCM of 28122 and 28136.

LCM(28122,28136) = 2³ × 3¹ × 43¹ × 109¹ × 3517¹
LCM(28122,28136) = 395620296