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What is the Least Common Multiple of 15745 and 15760?

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 15745 and 15760 is 49628240.

LCM(15745,15760) = 49628240

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Least Common Multiple of 15745 and 15760 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15745 and 15760, than apply into the LCM equation.

GCF(15745,15760) = 5
LCM(15745,15760) = ( 15745 × 15760) / 5
LCM(15745,15760) = 248141200 / 5
LCM(15745,15760) = 49628240

Least Common Multiple (LCM) of 15745 and 15760 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15745 and 15760. First we will calculate the prime factors of 15745 and 15760.

Prime Factorization of 15745

Prime factors of 15745 are 5, 47, 67. Prime factorization of 15745 in exponential form is:

15745 = 51 × 471 × 671

Prime Factorization of 15760

Prime factors of 15760 are 2, 5, 197. Prime factorization of 15760 in exponential form is:

15760 = 24 × 51 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 15745 and 15760.

LCM(15745,15760) = 51 × 471 × 671 × 24 × 1971
LCM(15745,15760) = 49628240