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What is the Least Common Multiple of 2160 and 2166?

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 2160 and 2166 is 779760.

LCM(2160,2166) = 779760

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Least Common Multiple of 2160 and 2166 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2160 and 2166, than apply into the LCM equation.

GCF(2160,2166) = 6
LCM(2160,2166) = ( 2160 × 2166) / 6
LCM(2160,2166) = 4678560 / 6
LCM(2160,2166) = 779760

Least Common Multiple (LCM) of 2160 and 2166 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2160 and 2166. First we will calculate the prime factors of 2160 and 2166.

Prime Factorization of 2160

Prime factors of 2160 are 2, 3, 5. Prime factorization of 2160 in exponential form is:

2160 = 24 × 33 × 51

Prime Factorization of 2166

Prime factors of 2166 are 2, 3, 19. Prime factorization of 2166 in exponential form is:

2166 = 21 × 31 × 192

Now multiplying the highest exponent prime factors to calculate the LCM of 2160 and 2166.

LCM(2160,2166) = 24 × 33 × 51 × 192
LCM(2160,2166) = 779760