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What is the Least Common Multiple of 38728 and 38745?

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 38728 and 38745 is 1500516360.

LCM(38728,38745) = 1500516360

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Least Common Multiple of 38728 and 38745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38728 and 38745, than apply into the LCM equation.

GCF(38728,38745) = 1
LCM(38728,38745) = ( 38728 × 38745) / 1
LCM(38728,38745) = 1500516360 / 1
LCM(38728,38745) = 1500516360

Least Common Multiple (LCM) of 38728 and 38745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38728 and 38745. First we will calculate the prime factors of 38728 and 38745.

Prime Factorization of 38728

Prime factors of 38728 are 2, 47, 103. Prime factorization of 38728 in exponential form is:

38728 = 23 × 471 × 1031

Prime Factorization of 38745

Prime factors of 38745 are 3, 5, 7, 41. Prime factorization of 38745 in exponential form is:

38745 = 33 × 51 × 71 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 38728 and 38745.

LCM(38728,38745) = 23 × 471 × 1031 × 33 × 51 × 71 × 411
LCM(38728,38745) = 1500516360