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What is the Least Common Multiple of 72178 and 72187?

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 72178 and 72187 is 5210313286.

LCM(72178,72187) = 5210313286

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Least Common Multiple of 72178 and 72187 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72178 and 72187, than apply into the LCM equation.

GCF(72178,72187) = 1
LCM(72178,72187) = ( 72178 × 72187) / 1
LCM(72178,72187) = 5210313286 / 1
LCM(72178,72187) = 5210313286

Least Common Multiple (LCM) of 72178 and 72187 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72178 and 72187. First we will calculate the prime factors of 72178 and 72187.

Prime Factorization of 72178

Prime factors of 72178 are 2, 151, 239. Prime factorization of 72178 in exponential form is:

72178 = 21 × 1511 × 2391

Prime Factorization of 72187

Prime factors of 72187 are 37, 1951. Prime factorization of 72187 in exponential form is:

72187 = 371 × 19511

Now multiplying the highest exponent prime factors to calculate the LCM of 72178 and 72187.

LCM(72178,72187) = 21 × 1511 × 2391 × 371 × 19511
LCM(72178,72187) = 5210313286