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What is the Least Common Multiple of 8480 and 8487?

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 8480 and 8487 is 71969760.

LCM(8480,8487) = 71969760

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Least Common Multiple of 8480 and 8487 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8480 and 8487, than apply into the LCM equation.

GCF(8480,8487) = 1
LCM(8480,8487) = ( 8480 × 8487) / 1
LCM(8480,8487) = 71969760 / 1
LCM(8480,8487) = 71969760

Least Common Multiple (LCM) of 8480 and 8487 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8480 and 8487. First we will calculate the prime factors of 8480 and 8487.

Prime Factorization of 8480

Prime factors of 8480 are 2, 5, 53. Prime factorization of 8480 in exponential form is:

8480 = 25 × 51 × 531

Prime Factorization of 8487

Prime factors of 8487 are 3, 23, 41. Prime factorization of 8487 in exponential form is:

8487 = 32 × 231 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 8480 and 8487.

LCM(8480,8487) = 25 × 51 × 531 × 32 × 231 × 411
LCM(8480,8487) = 71969760