What is the Least Common Multiple of 1089 and 1097?

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 1089 and 1097 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1089 and 1097, than apply into the LCM equation.

GCF(1089,1097) = 1
LCM(1089,1097) = ( 1089 × 1097) / 1
LCM(1089,1097) = 1194633 / 1
LCM(1089,1097) = 1194633

Least Common Multiple (LCM) of 1089 and 1097 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1089 and 1097. First we will calculate the prime factors of 1089 and 1097.

Prime Factorization of 1089

Prime Factorization of 1097

Now multiplying the highest exponent prime factors to calculate the LCM of 1089 and 1097.

LCM(1089,1097) = 3² × 11² × 1097¹
LCM(1089,1097) = 1194633