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What is the Least Common Multiple of 15785 and 15801?

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 15785 and 15801 is 249418785.

LCM(15785,15801) = 249418785

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Least Common Multiple of 15785 and 15801 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15785 and 15801, than apply into the LCM equation.

GCF(15785,15801) = 1
LCM(15785,15801) = ( 15785 × 15801) / 1
LCM(15785,15801) = 249418785 / 1
LCM(15785,15801) = 249418785

Least Common Multiple (LCM) of 15785 and 15801 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15785 and 15801. First we will calculate the prime factors of 15785 and 15801.

Prime Factorization of 15785

Prime factors of 15785 are 5, 7, 11, 41. Prime factorization of 15785 in exponential form is:

15785 = 51 × 71 × 111 × 411

Prime Factorization of 15801

Prime factors of 15801 are 3, 23, 229. Prime factorization of 15801 in exponential form is:

15801 = 31 × 231 × 2291

Now multiplying the highest exponent prime factors to calculate the LCM of 15785 and 15801.

LCM(15785,15801) = 51 × 71 × 111 × 411 × 31 × 231 × 2291
LCM(15785,15801) = 249418785