What is the Least Common Multiple of 17200 and 17220?

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 17200 and 17220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17200 and 17220, than apply into the LCM equation.

GCF(17200,17220) = 20
LCM(17200,17220) = ( 17200 × 17220) / 20
LCM(17200,17220) = 296184000 / 20
LCM(17200,17220) = 14809200

Least Common Multiple (LCM) of 17200 and 17220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17200 and 17220. First we will calculate the prime factors of 17200 and 17220.

Prime Factorization of 17200

Prime Factorization of 17220

Now multiplying the highest exponent prime factors to calculate the LCM of 17200 and 17220.

LCM(17200,17220) = 2⁴ × 5² × 43¹ × 3¹ × 7¹ × 41¹
LCM(17200,17220) = 14809200