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What is the Least Common Multiple of 78411 and 78422?

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 78411 and 78422 is 6149147442.

LCM(78411,78422) = 6149147442

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Least Common Multiple of 78411 and 78422 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78411 and 78422, than apply into the LCM equation.

GCF(78411,78422) = 1
LCM(78411,78422) = ( 78411 × 78422) / 1
LCM(78411,78422) = 6149147442 / 1
LCM(78411,78422) = 6149147442

Least Common Multiple (LCM) of 78411 and 78422 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78411 and 78422. First we will calculate the prime factors of 78411 and 78422.

Prime Factorization of 78411

Prime factors of 78411 are 3, 59, 443. Prime factorization of 78411 in exponential form is:

78411 = 31 × 591 × 4431

Prime Factorization of 78422

Prime factors of 78422 are 2, 113, 347. Prime factorization of 78422 in exponential form is:

78422 = 21 × 1131 × 3471

Now multiplying the highest exponent prime factors to calculate the LCM of 78411 and 78422.

LCM(78411,78422) = 31 × 591 × 4431 × 21 × 1131 × 3471
LCM(78411,78422) = 6149147442