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What is the Least Common Multiple of 15742 and 15750?

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 15742 and 15750 is 123968250.

LCM(15742,15750) = 123968250

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Least Common Multiple of 15742 and 15750 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15742 and 15750, than apply into the LCM equation.

GCF(15742,15750) = 2
LCM(15742,15750) = ( 15742 × 15750) / 2
LCM(15742,15750) = 247936500 / 2
LCM(15742,15750) = 123968250

Least Common Multiple (LCM) of 15742 and 15750 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15742 and 15750. First we will calculate the prime factors of 15742 and 15750.

Prime Factorization of 15742

Prime factors of 15742 are 2, 17, 463. Prime factorization of 15742 in exponential form is:

15742 = 21 × 171 × 4631

Prime Factorization of 15750

Prime factors of 15750 are 2, 3, 5, 7. Prime factorization of 15750 in exponential form is:

15750 = 21 × 32 × 53 × 71

Now multiplying the highest exponent prime factors to calculate the LCM of 15742 and 15750.

LCM(15742,15750) = 21 × 171 × 4631 × 32 × 53 × 71
LCM(15742,15750) = 123968250