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What is the Least Common Multiple of 78615 and 78633?

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 78615 and 78633 is 686859255.

LCM(78615,78633) = 686859255

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Least Common Multiple of 78615 and 78633 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78615 and 78633, than apply into the LCM equation.

GCF(78615,78633) = 9
LCM(78615,78633) = ( 78615 × 78633) / 9
LCM(78615,78633) = 6181733295 / 9
LCM(78615,78633) = 686859255

Least Common Multiple (LCM) of 78615 and 78633 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78615 and 78633. First we will calculate the prime factors of 78615 and 78633.

Prime Factorization of 78615

Prime factors of 78615 are 3, 5, 1747. Prime factorization of 78615 in exponential form is:

78615 = 32 × 51 × 17471

Prime Factorization of 78633

Prime factors of 78633 are 3, 8737. Prime factorization of 78633 in exponential form is:

78633 = 32 × 87371

Now multiplying the highest exponent prime factors to calculate the LCM of 78615 and 78633.

LCM(78615,78633) = 32 × 51 × 17471 × 87371
LCM(78615,78633) = 686859255