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What is the Least Common Multiple of 78344 and 78358?

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 78344 and 78358 is 438491368.

LCM(78344,78358) = 438491368

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Least Common Multiple of 78344 and 78358 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78344 and 78358, than apply into the LCM equation.

GCF(78344,78358) = 14
LCM(78344,78358) = ( 78344 × 78358) / 14
LCM(78344,78358) = 6138879152 / 14
LCM(78344,78358) = 438491368

Least Common Multiple (LCM) of 78344 and 78358 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78344 and 78358. First we will calculate the prime factors of 78344 and 78358.

Prime Factorization of 78344

Prime factors of 78344 are 2, 7, 1399. Prime factorization of 78344 in exponential form is:

78344 = 23 × 71 × 13991

Prime Factorization of 78358

Prime factors of 78358 are 2, 7, 29, 193. Prime factorization of 78358 in exponential form is:

78358 = 21 × 71 × 291 × 1931

Now multiplying the highest exponent prime factors to calculate the LCM of 78344 and 78358.

LCM(78344,78358) = 23 × 71 × 13991 × 291 × 1931
LCM(78344,78358) = 438491368