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What is the Least Common Multiple of 42687 and 42695?

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 42687 and 42695 is 1822521465.

LCM(42687,42695) = 1822521465

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Least Common Multiple of 42687 and 42695 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42687 and 42695, than apply into the LCM equation.

GCF(42687,42695) = 1
LCM(42687,42695) = ( 42687 × 42695) / 1
LCM(42687,42695) = 1822521465 / 1
LCM(42687,42695) = 1822521465

Least Common Multiple (LCM) of 42687 and 42695 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42687 and 42695. First we will calculate the prime factors of 42687 and 42695.

Prime Factorization of 42687

Prime factors of 42687 are 3, 17, 31. Prime factorization of 42687 in exponential form is:

42687 = 34 × 171 × 311

Prime Factorization of 42695

Prime factors of 42695 are 5, 8539. Prime factorization of 42695 in exponential form is:

42695 = 51 × 85391

Now multiplying the highest exponent prime factors to calculate the LCM of 42687 and 42695.

LCM(42687,42695) = 34 × 171 × 311 × 51 × 85391
LCM(42687,42695) = 1822521465