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What is the Least Common Multiple of 17830 and 17838?

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 17830 and 17838 is 159025770.

LCM(17830,17838) = 159025770

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Least Common Multiple of 17830 and 17838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17830 and 17838, than apply into the LCM equation.

GCF(17830,17838) = 2
LCM(17830,17838) = ( 17830 × 17838) / 2
LCM(17830,17838) = 318051540 / 2
LCM(17830,17838) = 159025770

Least Common Multiple (LCM) of 17830 and 17838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17830 and 17838. First we will calculate the prime factors of 17830 and 17838.

Prime Factorization of 17830

Prime factors of 17830 are 2, 5, 1783. Prime factorization of 17830 in exponential form is:

17830 = 21 × 51 × 17831

Prime Factorization of 17838

Prime factors of 17838 are 2, 3, 991. Prime factorization of 17838 in exponential form is:

17838 = 21 × 32 × 9911

Now multiplying the highest exponent prime factors to calculate the LCM of 17830 and 17838.

LCM(17830,17838) = 21 × 51 × 17831 × 32 × 9911
LCM(17830,17838) = 159025770