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What is the Least Common Multiple of 1167 and 1185?

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 (LCM) of 1167 and 1185 is 460965.

LCM(1167,1185) = 460965

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Least Common Multiple of 1167 and 1185 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1167 and 1185, than apply into the LCM equation.

GCF(1167,1185) = 3
LCM(1167,1185) = ( 1167 × 1185) / 3
LCM(1167,1185) = 1382895 / 3
LCM(1167,1185) = 460965

Least Common Multiple (LCM) of 1167 and 1185 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1167 and 1185. First we will calculate the prime factors of 1167 and 1185.

Prime Factorization of 1167

Prime factors of 1167 are 3, 389. Prime factorization of 1167 in exponential form is:

1167 = 31 × 3891

Prime Factorization of 1185

Prime factors of 1185 are 3, 5, 79. Prime factorization of 1185 in exponential form is:

1185 = 31 × 51 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 1167 and 1185.

LCM(1167,1185) = 31 × 3891 × 51 × 791
LCM(1167,1185) = 460965