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What is the Least Common Multiple of 40381 and 40393?

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 40381 and 40393 is 1631109733.

LCM(40381,40393) = 1631109733

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Least Common Multiple of 40381 and 40393 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40381 and 40393, than apply into the LCM equation.

GCF(40381,40393) = 1
LCM(40381,40393) = ( 40381 × 40393) / 1
LCM(40381,40393) = 1631109733 / 1
LCM(40381,40393) = 1631109733

Least Common Multiple (LCM) of 40381 and 40393 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40381 and 40393. First we will calculate the prime factors of 40381 and 40393.

Prime Factorization of 40381

Prime factors of 40381 are 11, 3671. Prime factorization of 40381 in exponential form is:

40381 = 111 × 36711

Prime Factorization of 40393

Prime factors of 40393 are 31, 1303. Prime factorization of 40393 in exponential form is:

40393 = 311 × 13031

Now multiplying the highest exponent prime factors to calculate the LCM of 40381 and 40393.

LCM(40381,40393) = 111 × 36711 × 311 × 13031
LCM(40381,40393) = 1631109733