What is the Least Common Multiple of 1217 and 1227?

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 1217 and 1227 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1217 and 1227, than apply into the LCM equation.

GCF(1217,1227) = 1
LCM(1217,1227) = ( 1217 × 1227) / 1
LCM(1217,1227) = 1493259 / 1
LCM(1217,1227) = 1493259

Least Common Multiple (LCM) of 1217 and 1227 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1217 and 1227. First we will calculate the prime factors of 1217 and 1227.

Prime Factorization of 1217

Prime Factorization of 1227

Now multiplying the highest exponent prime factors to calculate the LCM of 1217 and 1227.

LCM(1217,1227) = 1217¹ × 3¹ × 409¹
LCM(1217,1227) = 1493259