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What is the Least Common Multiple of 38280 and 38285?

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 38280 and 38285 is 293109960.

LCM(38280,38285) = 293109960

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Least Common Multiple of 38280 and 38285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38280 and 38285, than apply into the LCM equation.

GCF(38280,38285) = 5
LCM(38280,38285) = ( 38280 × 38285) / 5
LCM(38280,38285) = 1465549800 / 5
LCM(38280,38285) = 293109960

Least Common Multiple (LCM) of 38280 and 38285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38280 and 38285. First we will calculate the prime factors of 38280 and 38285.

Prime Factorization of 38280

Prime factors of 38280 are 2, 3, 5, 11, 29. Prime factorization of 38280 in exponential form is:

38280 = 23 × 31 × 51 × 111 × 291

Prime Factorization of 38285

Prime factors of 38285 are 5, 13, 19, 31. Prime factorization of 38285 in exponential form is:

38285 = 51 × 131 × 191 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 38280 and 38285.

LCM(38280,38285) = 23 × 31 × 51 × 111 × 291 × 131 × 191 × 311
LCM(38280,38285) = 293109960