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What is the Least Common Multiple of 5280 and 5285?

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 5280 and 5285 is 5580960.

LCM(5280,5285) = 5580960

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Least Common Multiple of 5280 and 5285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5280 and 5285, than apply into the LCM equation.

GCF(5280,5285) = 5
LCM(5280,5285) = ( 5280 × 5285) / 5
LCM(5280,5285) = 27904800 / 5
LCM(5280,5285) = 5580960

Least Common Multiple (LCM) of 5280 and 5285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5280 and 5285. First we will calculate the prime factors of 5280 and 5285.

Prime Factorization of 5280

Prime factors of 5280 are 2, 3, 5, 11. Prime factorization of 5280 in exponential form is:

5280 = 25 × 31 × 51 × 111

Prime Factorization of 5285

Prime factors of 5285 are 5, 7, 151. Prime factorization of 5285 in exponential form is:

5285 = 51 × 71 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 5280 and 5285.

LCM(5280,5285) = 25 × 31 × 51 × 111 × 71 × 1511
LCM(5280,5285) = 5580960