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What is the Least Common Multiple of 40704 and 40715?

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 40704 and 40715 is 1657263360.

LCM(40704,40715) = 1657263360

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Least Common Multiple of 40704 and 40715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40704 and 40715, than apply into the LCM equation.

GCF(40704,40715) = 1
LCM(40704,40715) = ( 40704 × 40715) / 1
LCM(40704,40715) = 1657263360 / 1
LCM(40704,40715) = 1657263360

Least Common Multiple (LCM) of 40704 and 40715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40704 and 40715. First we will calculate the prime factors of 40704 and 40715.

Prime Factorization of 40704

Prime factors of 40704 are 2, 3, 53. Prime factorization of 40704 in exponential form is:

40704 = 28 × 31 × 531

Prime Factorization of 40715

Prime factors of 40715 are 5, 17, 479. Prime factorization of 40715 in exponential form is:

40715 = 51 × 171 × 4791

Now multiplying the highest exponent prime factors to calculate the LCM of 40704 and 40715.

LCM(40704,40715) = 28 × 31 × 531 × 51 × 171 × 4791
LCM(40704,40715) = 1657263360