What is the Least Common Multiple of 1143 and 1163?

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 1143 and 1163 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1143 and 1163, than apply into the LCM equation.

GCF(1143,1163) = 1
LCM(1143,1163) = ( 1143 × 1163) / 1
LCM(1143,1163) = 1329309 / 1
LCM(1143,1163) = 1329309

Least Common Multiple (LCM) of 1143 and 1163 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1143 and 1163. First we will calculate the prime factors of 1143 and 1163.

Prime Factorization of 1143

Prime Factorization of 1163

Now multiplying the highest exponent prime factors to calculate the LCM of 1143 and 1163.

LCM(1143,1163) = 3² × 127¹ × 1163¹
LCM(1143,1163) = 1329309