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What is the Least Common Multiple of 23820 and 23838?

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 23820 and 23838 is 94636860.

LCM(23820,23838) = 94636860

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Least Common Multiple of 23820 and 23838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23820 and 23838, than apply into the LCM equation.

GCF(23820,23838) = 6
LCM(23820,23838) = ( 23820 × 23838) / 6
LCM(23820,23838) = 567821160 / 6
LCM(23820,23838) = 94636860

Least Common Multiple (LCM) of 23820 and 23838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23820 and 23838. First we will calculate the prime factors of 23820 and 23838.

Prime Factorization of 23820

Prime factors of 23820 are 2, 3, 5, 397. Prime factorization of 23820 in exponential form is:

23820 = 22 × 31 × 51 × 3971

Prime Factorization of 23838

Prime factors of 23838 are 2, 3, 29, 137. Prime factorization of 23838 in exponential form is:

23838 = 21 × 31 × 291 × 1371

Now multiplying the highest exponent prime factors to calculate the LCM of 23820 and 23838.

LCM(23820,23838) = 22 × 31 × 51 × 3971 × 291 × 1371
LCM(23820,23838) = 94636860