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What is the Least Common Multiple of 15490 and 15498?

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 15490 and 15498 is 120032010.

LCM(15490,15498) = 120032010

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Least Common Multiple of 15490 and 15498 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15490 and 15498, than apply into the LCM equation.

GCF(15490,15498) = 2
LCM(15490,15498) = ( 15490 × 15498) / 2
LCM(15490,15498) = 240064020 / 2
LCM(15490,15498) = 120032010

Least Common Multiple (LCM) of 15490 and 15498 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15490 and 15498. First we will calculate the prime factors of 15490 and 15498.

Prime Factorization of 15490

Prime factors of 15490 are 2, 5, 1549. Prime factorization of 15490 in exponential form is:

15490 = 21 × 51 × 15491

Prime Factorization of 15498

Prime factors of 15498 are 2, 3, 7, 41. Prime factorization of 15498 in exponential form is:

15498 = 21 × 33 × 71 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 15490 and 15498.

LCM(15490,15498) = 21 × 51 × 15491 × 33 × 71 × 411
LCM(15490,15498) = 120032010