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What is the Least Common Multiple of 15762 and 15782?

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 15762 and 15782 is 124377942.

LCM(15762,15782) = 124377942

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Least Common Multiple of 15762 and 15782 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15762 and 15782, than apply into the LCM equation.

GCF(15762,15782) = 2
LCM(15762,15782) = ( 15762 × 15782) / 2
LCM(15762,15782) = 248755884 / 2
LCM(15762,15782) = 124377942

Least Common Multiple (LCM) of 15762 and 15782 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15762 and 15782. First we will calculate the prime factors of 15762 and 15782.

Prime Factorization of 15762

Prime factors of 15762 are 2, 3, 37, 71. Prime factorization of 15762 in exponential form is:

15762 = 21 × 31 × 371 × 711

Prime Factorization of 15782

Prime factors of 15782 are 2, 13, 607. Prime factorization of 15782 in exponential form is:

15782 = 21 × 131 × 6071

Now multiplying the highest exponent prime factors to calculate the LCM of 15762 and 15782.

LCM(15762,15782) = 21 × 31 × 371 × 711 × 131 × 6071
LCM(15762,15782) = 124377942