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What is the Least Common Multiple of 40385 and 40394?

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 40385 and 40394 is 1631311690.

LCM(40385,40394) = 1631311690

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Least Common Multiple of 40385 and 40394 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40385 and 40394, than apply into the LCM equation.

GCF(40385,40394) = 1
LCM(40385,40394) = ( 40385 × 40394) / 1
LCM(40385,40394) = 1631311690 / 1
LCM(40385,40394) = 1631311690

Least Common Multiple (LCM) of 40385 and 40394 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40385 and 40394. First we will calculate the prime factors of 40385 and 40394.

Prime Factorization of 40385

Prime factors of 40385 are 5, 41, 197. Prime factorization of 40385 in exponential form is:

40385 = 51 × 411 × 1971

Prime Factorization of 40394

Prime factors of 40394 are 2, 19, 1063. Prime factorization of 40394 in exponential form is:

40394 = 21 × 191 × 10631

Now multiplying the highest exponent prime factors to calculate the LCM of 40385 and 40394.

LCM(40385,40394) = 51 × 411 × 1971 × 21 × 191 × 10631
LCM(40385,40394) = 1631311690