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What is the Least Common Multiple of 18486 and 18502?

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 18486 and 18502 is 171013986.

LCM(18486,18502) = 171013986

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Least Common Multiple of 18486 and 18502 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18486 and 18502, than apply into the LCM equation.

GCF(18486,18502) = 2
LCM(18486,18502) = ( 18486 × 18502) / 2
LCM(18486,18502) = 342027972 / 2
LCM(18486,18502) = 171013986

Least Common Multiple (LCM) of 18486 and 18502 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18486 and 18502. First we will calculate the prime factors of 18486 and 18502.

Prime Factorization of 18486

Prime factors of 18486 are 2, 3, 13, 79. Prime factorization of 18486 in exponential form is:

18486 = 21 × 32 × 131 × 791

Prime Factorization of 18502

Prime factors of 18502 are 2, 11, 29. Prime factorization of 18502 in exponential form is:

18502 = 21 × 111 × 292

Now multiplying the highest exponent prime factors to calculate the LCM of 18486 and 18502.

LCM(18486,18502) = 21 × 32 × 131 × 791 × 111 × 292
LCM(18486,18502) = 171013986