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What is the Least Common Multiple of 76578 and 76587?

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 76578 and 76587 is 1954959762.

LCM(76578,76587) = 1954959762

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Least Common Multiple of 76578 and 76587 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76578 and 76587, than apply into the LCM equation.

GCF(76578,76587) = 3
LCM(76578,76587) = ( 76578 × 76587) / 3
LCM(76578,76587) = 5864879286 / 3
LCM(76578,76587) = 1954959762

Least Common Multiple (LCM) of 76578 and 76587 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76578 and 76587. First we will calculate the prime factors of 76578 and 76587.

Prime Factorization of 76578

Prime factors of 76578 are 2, 3, 12763. Prime factorization of 76578 in exponential form is:

76578 = 21 × 31 × 127631

Prime Factorization of 76587

Prime factors of 76587 are 3, 7, 521. Prime factorization of 76587 in exponential form is:

76587 = 31 × 72 × 5211

Now multiplying the highest exponent prime factors to calculate the LCM of 76578 and 76587.

LCM(76578,76587) = 21 × 31 × 127631 × 72 × 5211
LCM(76578,76587) = 1954959762