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What is the Least Common Multiple of 18528 and 18540?

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 18528 and 18540 is 28625760.

LCM(18528,18540) = 28625760

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Least Common Multiple of 18528 and 18540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18528 and 18540, than apply into the LCM equation.

GCF(18528,18540) = 12
LCM(18528,18540) = ( 18528 × 18540) / 12
LCM(18528,18540) = 343509120 / 12
LCM(18528,18540) = 28625760

Least Common Multiple (LCM) of 18528 and 18540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18528 and 18540. First we will calculate the prime factors of 18528 and 18540.

Prime Factorization of 18528

Prime factors of 18528 are 2, 3, 193. Prime factorization of 18528 in exponential form is:

18528 = 25 × 31 × 1931

Prime Factorization of 18540

Prime factors of 18540 are 2, 3, 5, 103. Prime factorization of 18540 in exponential form is:

18540 = 22 × 32 × 51 × 1031

Now multiplying the highest exponent prime factors to calculate the LCM of 18528 and 18540.

LCM(18528,18540) = 25 × 32 × 1931 × 51 × 1031
LCM(18528,18540) = 28625760