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What is the Least Common Multiple of 21830 and 21849?

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 21830 and 21849 is 476963670.

LCM(21830,21849) = 476963670

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Least Common Multiple of 21830 and 21849 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21830 and 21849, than apply into the LCM equation.

GCF(21830,21849) = 1
LCM(21830,21849) = ( 21830 × 21849) / 1
LCM(21830,21849) = 476963670 / 1
LCM(21830,21849) = 476963670

Least Common Multiple (LCM) of 21830 and 21849 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21830 and 21849. First we will calculate the prime factors of 21830 and 21849.

Prime Factorization of 21830

Prime factors of 21830 are 2, 5, 37, 59. Prime factorization of 21830 in exponential form is:

21830 = 21 × 51 × 371 × 591

Prime Factorization of 21849

Prime factors of 21849 are 3, 7283. Prime factorization of 21849 in exponential form is:

21849 = 31 × 72831

Now multiplying the highest exponent prime factors to calculate the LCM of 21830 and 21849.

LCM(21830,21849) = 21 × 51 × 371 × 591 × 31 × 72831
LCM(21830,21849) = 476963670