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What is the Least Common Multiple of 38785 and 38800?

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 38785 and 38800 is 300971600.

LCM(38785,38800) = 300971600

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Least Common Multiple of 38785 and 38800 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38785 and 38800, than apply into the LCM equation.

GCF(38785,38800) = 5
LCM(38785,38800) = ( 38785 × 38800) / 5
LCM(38785,38800) = 1504858000 / 5
LCM(38785,38800) = 300971600

Least Common Multiple (LCM) of 38785 and 38800 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38785 and 38800. First we will calculate the prime factors of 38785 and 38800.

Prime Factorization of 38785

Prime factors of 38785 are 5, 7757. Prime factorization of 38785 in exponential form is:

38785 = 51 × 77571

Prime Factorization of 38800

Prime factors of 38800 are 2, 5, 97. Prime factorization of 38800 in exponential form is:

38800 = 24 × 52 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 38785 and 38800.

LCM(38785,38800) = 52 × 77571 × 24 × 971
LCM(38785,38800) = 300971600