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What is the Least Common Multiple of 42873 and 42879?

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 42873 and 42879 is 612783789.

LCM(42873,42879) = 612783789

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Least Common Multiple of 42873 and 42879 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42873 and 42879, than apply into the LCM equation.

GCF(42873,42879) = 3
LCM(42873,42879) = ( 42873 × 42879) / 3
LCM(42873,42879) = 1838351367 / 3
LCM(42873,42879) = 612783789

Least Common Multiple (LCM) of 42873 and 42879 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42873 and 42879. First we will calculate the prime factors of 42873 and 42879.

Prime Factorization of 42873

Prime factors of 42873 are 3, 31, 461. Prime factorization of 42873 in exponential form is:

42873 = 31 × 311 × 4611

Prime Factorization of 42879

Prime factors of 42879 are 3, 14293. Prime factorization of 42879 in exponential form is:

42879 = 31 × 142931

Now multiplying the highest exponent prime factors to calculate the LCM of 42873 and 42879.

LCM(42873,42879) = 31 × 311 × 4611 × 142931
LCM(42873,42879) = 612783789