What is the Least Common Multiple of 90280 and 90290?

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 90280 and 90290 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90280 and 90290, than apply into the LCM equation.

GCF(90280,90290) = 10
LCM(90280,90290) = ( 90280 × 90290) / 10
LCM(90280,90290) = 8151381200 / 10
LCM(90280,90290) = 815138120

Least Common Multiple (LCM) of 90280 and 90290 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90280 and 90290. First we will calculate the prime factors of 90280 and 90290.

Prime Factorization of 90280

Prime Factorization of 90290

Now multiplying the highest exponent prime factors to calculate the LCM of 90280 and 90290.

LCM(90280,90290) = 2³ × 5¹ × 37¹ × 61¹ × 9029¹
LCM(90280,90290) = 815138120