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What is the Least Common Multiple of 15857 and 15862?

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 15857 and 15862 is 251523734.

LCM(15857,15862) = 251523734

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Least Common Multiple of 15857 and 15862 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15857 and 15862, than apply into the LCM equation.

GCF(15857,15862) = 1
LCM(15857,15862) = ( 15857 × 15862) / 1
LCM(15857,15862) = 251523734 / 1
LCM(15857,15862) = 251523734

Least Common Multiple (LCM) of 15857 and 15862 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15857 and 15862. First we will calculate the prime factors of 15857 and 15862.

Prime Factorization of 15857

Prime factors of 15857 are 101, 157. Prime factorization of 15857 in exponential form is:

15857 = 1011 × 1571

Prime Factorization of 15862

Prime factors of 15862 are 2, 7, 11, 103. Prime factorization of 15862 in exponential form is:

15862 = 21 × 71 × 111 × 1031

Now multiplying the highest exponent prime factors to calculate the LCM of 15857 and 15862.

LCM(15857,15862) = 1011 × 1571 × 21 × 71 × 111 × 1031
LCM(15857,15862) = 251523734