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What is the Least Common Multiple of 25831 and 25838?

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 25831 and 25838 is 667421378.

LCM(25831,25838) = 667421378

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Least Common Multiple of 25831 and 25838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25831 and 25838, than apply into the LCM equation.

GCF(25831,25838) = 1
LCM(25831,25838) = ( 25831 × 25838) / 1
LCM(25831,25838) = 667421378 / 1
LCM(25831,25838) = 667421378

Least Common Multiple (LCM) of 25831 and 25838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25831 and 25838. First we will calculate the prime factors of 25831 and 25838.

Prime Factorization of 25831

Prime factors of 25831 are 13, 1987. Prime factorization of 25831 in exponential form is:

25831 = 131 × 19871

Prime Factorization of 25838

Prime factors of 25838 are 2, 12919. Prime factorization of 25838 in exponential form is:

25838 = 21 × 129191

Now multiplying the highest exponent prime factors to calculate the LCM of 25831 and 25838.

LCM(25831,25838) = 131 × 19871 × 21 × 129191
LCM(25831,25838) = 667421378