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What is the Least Common Multiple of 78135 and 78154?

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 78135 and 78154 is 6106562790.

LCM(78135,78154) = 6106562790

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Least Common Multiple of 78135 and 78154 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78135 and 78154, than apply into the LCM equation.

GCF(78135,78154) = 1
LCM(78135,78154) = ( 78135 × 78154) / 1
LCM(78135,78154) = 6106562790 / 1
LCM(78135,78154) = 6106562790

Least Common Multiple (LCM) of 78135 and 78154 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78135 and 78154. First we will calculate the prime factors of 78135 and 78154.

Prime Factorization of 78135

Prime factors of 78135 are 3, 5, 5209. Prime factorization of 78135 in exponential form is:

78135 = 31 × 51 × 52091

Prime Factorization of 78154

Prime factors of 78154 are 2, 23, 1699. Prime factorization of 78154 in exponential form is:

78154 = 21 × 231 × 16991

Now multiplying the highest exponent prime factors to calculate the LCM of 78135 and 78154.

LCM(78135,78154) = 31 × 51 × 52091 × 21 × 231 × 16991
LCM(78135,78154) = 6106562790