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What is the Least Common Multiple of 15081 and 15090?

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 15081 and 15090 is 75857430.

LCM(15081,15090) = 75857430

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Least Common Multiple of 15081 and 15090 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15081 and 15090, than apply into the LCM equation.

GCF(15081,15090) = 3
LCM(15081,15090) = ( 15081 × 15090) / 3
LCM(15081,15090) = 227572290 / 3
LCM(15081,15090) = 75857430

Least Common Multiple (LCM) of 15081 and 15090 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15081 and 15090. First we will calculate the prime factors of 15081 and 15090.

Prime Factorization of 15081

Prime factors of 15081 are 3, 11, 457. Prime factorization of 15081 in exponential form is:

15081 = 31 × 111 × 4571

Prime Factorization of 15090

Prime factors of 15090 are 2, 3, 5, 503. Prime factorization of 15090 in exponential form is:

15090 = 21 × 31 × 51 × 5031

Now multiplying the highest exponent prime factors to calculate the LCM of 15081 and 15090.

LCM(15081,15090) = 31 × 111 × 4571 × 21 × 51 × 5031
LCM(15081,15090) = 75857430