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What is the Least Common Multiple of 25423 and 25431?

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 25423 and 25431 is 646532313.

LCM(25423,25431) = 646532313

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Least Common Multiple of 25423 and 25431 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25423 and 25431, than apply into the LCM equation.

GCF(25423,25431) = 1
LCM(25423,25431) = ( 25423 × 25431) / 1
LCM(25423,25431) = 646532313 / 1
LCM(25423,25431) = 646532313

Least Common Multiple (LCM) of 25423 and 25431 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25423 and 25431. First we will calculate the prime factors of 25423 and 25431.

Prime Factorization of 25423

Prime factors of 25423 are 25423. Prime factorization of 25423 in exponential form is:

25423 = 254231

Prime Factorization of 25431

Prime factors of 25431 are 3, 7, 173. Prime factorization of 25431 in exponential form is:

25431 = 31 × 72 × 1731

Now multiplying the highest exponent prime factors to calculate the LCM of 25423 and 25431.

LCM(25423,25431) = 254231 × 31 × 72 × 1731
LCM(25423,25431) = 646532313