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What is the Least Common Multiple of 18874 and 18885?

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 18874 and 18885 is 356435490.

LCM(18874,18885) = 356435490

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Least Common Multiple of 18874 and 18885 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18874 and 18885, than apply into the LCM equation.

GCF(18874,18885) = 1
LCM(18874,18885) = ( 18874 × 18885) / 1
LCM(18874,18885) = 356435490 / 1
LCM(18874,18885) = 356435490

Least Common Multiple (LCM) of 18874 and 18885 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18874 and 18885. First we will calculate the prime factors of 18874 and 18885.

Prime Factorization of 18874

Prime factors of 18874 are 2, 9437. Prime factorization of 18874 in exponential form is:

18874 = 21 × 94371

Prime Factorization of 18885

Prime factors of 18885 are 3, 5, 1259. Prime factorization of 18885 in exponential form is:

18885 = 31 × 51 × 12591

Now multiplying the highest exponent prime factors to calculate the LCM of 18874 and 18885.

LCM(18874,18885) = 21 × 94371 × 31 × 51 × 12591
LCM(18874,18885) = 356435490