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What is the Least Common Multiple of 78478 and 78483?

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 78478 and 78483 is 6159188874.

LCM(78478,78483) = 6159188874

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Least Common Multiple of 78478 and 78483 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78478 and 78483, than apply into the LCM equation.

GCF(78478,78483) = 1
LCM(78478,78483) = ( 78478 × 78483) / 1
LCM(78478,78483) = 6159188874 / 1
LCM(78478,78483) = 6159188874

Least Common Multiple (LCM) of 78478 and 78483 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78478 and 78483. First we will calculate the prime factors of 78478 and 78483.

Prime Factorization of 78478

Prime factors of 78478 are 2, 39239. Prime factorization of 78478 in exponential form is:

78478 = 21 × 392391

Prime Factorization of 78483

Prime factors of 78483 are 3, 26161. Prime factorization of 78483 in exponential form is:

78483 = 31 × 261611

Now multiplying the highest exponent prime factors to calculate the LCM of 78478 and 78483.

LCM(78478,78483) = 21 × 392391 × 31 × 261611
LCM(78478,78483) = 6159188874