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What is the Least Common Multiple of 78394 and 78403?

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 78394 and 78403 is 6146324782.

LCM(78394,78403) = 6146324782

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Least Common Multiple of 78394 and 78403 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78394 and 78403, than apply into the LCM equation.

GCF(78394,78403) = 1
LCM(78394,78403) = ( 78394 × 78403) / 1
LCM(78394,78403) = 6146324782 / 1
LCM(78394,78403) = 6146324782

Least Common Multiple (LCM) of 78394 and 78403 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78394 and 78403. First we will calculate the prime factors of 78394 and 78403.

Prime Factorization of 78394

Prime factors of 78394 are 2, 19, 2063. Prime factorization of 78394 in exponential form is:

78394 = 21 × 191 × 20631

Prime Factorization of 78403

Prime factors of 78403 are 13, 37, 163. Prime factorization of 78403 in exponential form is:

78403 = 131 × 371 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 78394 and 78403.

LCM(78394,78403) = 21 × 191 × 20631 × 131 × 371 × 1631
LCM(78394,78403) = 6146324782