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What is the Least Common Multiple of 28582 and 28590?

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 28582 and 28590 is 408579690.

LCM(28582,28590) = 408579690

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Least Common Multiple of 28582 and 28590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28582 and 28590, than apply into the LCM equation.

GCF(28582,28590) = 2
LCM(28582,28590) = ( 28582 × 28590) / 2
LCM(28582,28590) = 817159380 / 2
LCM(28582,28590) = 408579690

Least Common Multiple (LCM) of 28582 and 28590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28582 and 28590. First we will calculate the prime factors of 28582 and 28590.

Prime Factorization of 28582

Prime factors of 28582 are 2, 31, 461. Prime factorization of 28582 in exponential form is:

28582 = 21 × 311 × 4611

Prime Factorization of 28590

Prime factors of 28590 are 2, 3, 5, 953. Prime factorization of 28590 in exponential form is:

28590 = 21 × 31 × 51 × 9531

Now multiplying the highest exponent prime factors to calculate the LCM of 28582 and 28590.

LCM(28582,28590) = 21 × 311 × 4611 × 31 × 51 × 9531
LCM(28582,28590) = 408579690