What is the Least Common Multiple of 28142 and 28162?

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 28142 and 28162 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28142 and 28162, than apply into the LCM equation.

GCF(28142,28162) = 2
LCM(28142,28162) = ( 28142 × 28162) / 2
LCM(28142,28162) = 792535004 / 2
LCM(28142,28162) = 396267502

Least Common Multiple (LCM) of 28142 and 28162 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28142 and 28162. First we will calculate the prime factors of 28142 and 28162.

Prime Factorization of 28142

Prime Factorization of 28162

Now multiplying the highest exponent prime factors to calculate the LCM of 28142 and 28162.

LCM(28142,28162) = 2¹ × 14071¹ × 14081¹
LCM(28142,28162) = 396267502