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What is the Least Common Multiple of 18450 and 18455?

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 18450 and 18455 is 68098950.

LCM(18450,18455) = 68098950

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Least Common Multiple of 18450 and 18455 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18450 and 18455, than apply into the LCM equation.

GCF(18450,18455) = 5
LCM(18450,18455) = ( 18450 × 18455) / 5
LCM(18450,18455) = 340494750 / 5
LCM(18450,18455) = 68098950

Least Common Multiple (LCM) of 18450 and 18455 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18450 and 18455. First we will calculate the prime factors of 18450 and 18455.

Prime Factorization of 18450

Prime factors of 18450 are 2, 3, 5, 41. Prime factorization of 18450 in exponential form is:

18450 = 21 × 32 × 52 × 411

Prime Factorization of 18455

Prime factors of 18455 are 5, 3691. Prime factorization of 18455 in exponential form is:

18455 = 51 × 36911

Now multiplying the highest exponent prime factors to calculate the LCM of 18450 and 18455.

LCM(18450,18455) = 21 × 32 × 52 × 411 × 36911
LCM(18450,18455) = 68098950