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What is the Least Common Multiple of 7172 and 7188?

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 7172 and 7188 is 12888084.

LCM(7172,7188) = 12888084

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Least Common Multiple of 7172 and 7188 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7172 and 7188, than apply into the LCM equation.

GCF(7172,7188) = 4
LCM(7172,7188) = ( 7172 × 7188) / 4
LCM(7172,7188) = 51552336 / 4
LCM(7172,7188) = 12888084

Least Common Multiple (LCM) of 7172 and 7188 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7172 and 7188. First we will calculate the prime factors of 7172 and 7188.

Prime Factorization of 7172

Prime factors of 7172 are 2, 11, 163. Prime factorization of 7172 in exponential form is:

7172 = 22 × 111 × 1631

Prime Factorization of 7188

Prime factors of 7188 are 2, 3, 599. Prime factorization of 7188 in exponential form is:

7188 = 22 × 31 × 5991

Now multiplying the highest exponent prime factors to calculate the LCM of 7172 and 7188.

LCM(7172,7188) = 22 × 111 × 1631 × 31 × 5991
LCM(7172,7188) = 12888084