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What is the Least Common Multiple of 38700 and 38715?

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 38700 and 38715 is 99884700.

LCM(38700,38715) = 99884700

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Least Common Multiple of 38700 and 38715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38700 and 38715, than apply into the LCM equation.

GCF(38700,38715) = 15
LCM(38700,38715) = ( 38700 × 38715) / 15
LCM(38700,38715) = 1498270500 / 15
LCM(38700,38715) = 99884700

Least Common Multiple (LCM) of 38700 and 38715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38700 and 38715. First we will calculate the prime factors of 38700 and 38715.

Prime Factorization of 38700

Prime factors of 38700 are 2, 3, 5, 43. Prime factorization of 38700 in exponential form is:

38700 = 22 × 32 × 52 × 431

Prime Factorization of 38715

Prime factors of 38715 are 3, 5, 29, 89. Prime factorization of 38715 in exponential form is:

38715 = 31 × 51 × 291 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 38700 and 38715.

LCM(38700,38715) = 22 × 32 × 52 × 431 × 291 × 891
LCM(38700,38715) = 99884700