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What is the Least Common Multiple of 87857 and 87864?

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 87857 and 87864 is 1102781064.

LCM(87857,87864) = 1102781064

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Least Common Multiple of 87857 and 87864 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87857 and 87864, than apply into the LCM equation.

GCF(87857,87864) = 7
LCM(87857,87864) = ( 87857 × 87864) / 7
LCM(87857,87864) = 7719467448 / 7
LCM(87857,87864) = 1102781064

Least Common Multiple (LCM) of 87857 and 87864 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87857 and 87864. First we will calculate the prime factors of 87857 and 87864.

Prime Factorization of 87857

Prime factors of 87857 are 7, 11, 163. Prime factorization of 87857 in exponential form is:

87857 = 72 × 111 × 1631

Prime Factorization of 87864

Prime factors of 87864 are 2, 3, 7, 523. Prime factorization of 87864 in exponential form is:

87864 = 23 × 31 × 71 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 87857 and 87864.

LCM(87857,87864) = 72 × 111 × 1631 × 23 × 31 × 5231
LCM(87857,87864) = 1102781064