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What is the Least Common Multiple of 15393 and 15402?

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 15393 and 15402 is 79027662.

LCM(15393,15402) = 79027662

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Least Common Multiple of 15393 and 15402 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15393 and 15402, than apply into the LCM equation.

GCF(15393,15402) = 3
LCM(15393,15402) = ( 15393 × 15402) / 3
LCM(15393,15402) = 237082986 / 3
LCM(15393,15402) = 79027662

Least Common Multiple (LCM) of 15393 and 15402 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15393 and 15402. First we will calculate the prime factors of 15393 and 15402.

Prime Factorization of 15393

Prime factors of 15393 are 3, 7, 733. Prime factorization of 15393 in exponential form is:

15393 = 31 × 71 × 7331

Prime Factorization of 15402

Prime factors of 15402 are 2, 3, 17, 151. Prime factorization of 15402 in exponential form is:

15402 = 21 × 31 × 171 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 15393 and 15402.

LCM(15393,15402) = 31 × 71 × 7331 × 21 × 171 × 1511
LCM(15393,15402) = 79027662