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What is the Least Common Multiple of 57855 and 57865?

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 57855 and 57865 is 669555915.

LCM(57855,57865) = 669555915

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Least Common Multiple of 57855 and 57865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57855 and 57865, than apply into the LCM equation.

GCF(57855,57865) = 5
LCM(57855,57865) = ( 57855 × 57865) / 5
LCM(57855,57865) = 3347779575 / 5
LCM(57855,57865) = 669555915

Least Common Multiple (LCM) of 57855 and 57865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57855 and 57865. First we will calculate the prime factors of 57855 and 57865.

Prime Factorization of 57855

Prime factors of 57855 are 3, 5, 7, 19, 29. Prime factorization of 57855 in exponential form is:

57855 = 31 × 51 × 71 × 191 × 291

Prime Factorization of 57865

Prime factors of 57865 are 5, 71, 163. Prime factorization of 57865 in exponential form is:

57865 = 51 × 711 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 57855 and 57865.

LCM(57855,57865) = 31 × 51 × 71 × 191 × 291 × 711 × 1631
LCM(57855,57865) = 669555915