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What is the Least Common Multiple of 480 and 500?

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 480 and 500 is 12000.

LCM(480,500) = 12000

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Least Common Multiple of 480 and 500 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 480 and 500, than apply into the LCM equation.

GCF(480,500) = 20
LCM(480,500) = ( 480 × 500) / 20
LCM(480,500) = 240000 / 20
LCM(480,500) = 12000

Least Common Multiple (LCM) of 480 and 500 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 480 and 500. First we will calculate the prime factors of 480 and 500.

Prime Factorization of 480

Prime factors of 480 are 2, 3, 5. Prime factorization of 480 in exponential form is:

480 = 25 × 31 × 51

Prime Factorization of 500

Prime factors of 500 are 2, 5. Prime factorization of 500 in exponential form is:

500 = 22 × 53

Now multiplying the highest exponent prime factors to calculate the LCM of 480 and 500.

LCM(480,500) = 25 × 31 × 53
LCM(480,500) = 12000