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What is the Least Common Multiple of 8515 and 8519?

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 8515 and 8519 is 72539285.

LCM(8515,8519) = 72539285

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Least Common Multiple of 8515 and 8519 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8515 and 8519, than apply into the LCM equation.

GCF(8515,8519) = 1
LCM(8515,8519) = ( 8515 × 8519) / 1
LCM(8515,8519) = 72539285 / 1
LCM(8515,8519) = 72539285

Least Common Multiple (LCM) of 8515 and 8519 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8515 and 8519. First we will calculate the prime factors of 8515 and 8519.

Prime Factorization of 8515

Prime factors of 8515 are 5, 13, 131. Prime factorization of 8515 in exponential form is:

8515 = 51 × 131 × 1311

Prime Factorization of 8519

Prime factors of 8519 are 7, 1217. Prime factorization of 8519 in exponential form is:

8519 = 71 × 12171

Now multiplying the highest exponent prime factors to calculate the LCM of 8515 and 8519.

LCM(8515,8519) = 51 × 131 × 1311 × 71 × 12171
LCM(8515,8519) = 72539285