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What is the Least Common Multiple of 15725 and 15730?

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 15725 and 15730 is 49470850.

LCM(15725,15730) = 49470850

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Least Common Multiple of 15725 and 15730 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15725 and 15730, than apply into the LCM equation.

GCF(15725,15730) = 5
LCM(15725,15730) = ( 15725 × 15730) / 5
LCM(15725,15730) = 247354250 / 5
LCM(15725,15730) = 49470850

Least Common Multiple (LCM) of 15725 and 15730 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15725 and 15730. First we will calculate the prime factors of 15725 and 15730.

Prime Factorization of 15725

Prime factors of 15725 are 5, 17, 37. Prime factorization of 15725 in exponential form is:

15725 = 52 × 171 × 371

Prime Factorization of 15730

Prime factors of 15730 are 2, 5, 11, 13. Prime factorization of 15730 in exponential form is:

15730 = 21 × 51 × 112 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 15725 and 15730.

LCM(15725,15730) = 52 × 171 × 371 × 21 × 112 × 131
LCM(15725,15730) = 49470850