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What is the Least Common Multiple of 23400 and 23405?

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 23400 and 23405 is 109535400.

LCM(23400,23405) = 109535400

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Least Common Multiple of 23400 and 23405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23400 and 23405, than apply into the LCM equation.

GCF(23400,23405) = 5
LCM(23400,23405) = ( 23400 × 23405) / 5
LCM(23400,23405) = 547677000 / 5
LCM(23400,23405) = 109535400

Least Common Multiple (LCM) of 23400 and 23405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23400 and 23405. First we will calculate the prime factors of 23400 and 23405.

Prime Factorization of 23400

Prime factors of 23400 are 2, 3, 5, 13. Prime factorization of 23400 in exponential form is:

23400 = 23 × 32 × 52 × 131

Prime Factorization of 23405

Prime factors of 23405 are 5, 31, 151. Prime factorization of 23405 in exponential form is:

23405 = 51 × 311 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 23400 and 23405.

LCM(23400,23405) = 23 × 32 × 52 × 131 × 311 × 1511
LCM(23400,23405) = 109535400