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What is the Least Common Multiple of 4305 and 4318?

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 4305 and 4318 is 18588990.

LCM(4305,4318) = 18588990

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Least Common Multiple of 4305 and 4318 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4305 and 4318, than apply into the LCM equation.

GCF(4305,4318) = 1
LCM(4305,4318) = ( 4305 × 4318) / 1
LCM(4305,4318) = 18588990 / 1
LCM(4305,4318) = 18588990

Least Common Multiple (LCM) of 4305 and 4318 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4305 and 4318. First we will calculate the prime factors of 4305 and 4318.

Prime Factorization of 4305

Prime factors of 4305 are 3, 5, 7, 41. Prime factorization of 4305 in exponential form is:

4305 = 31 × 51 × 71 × 411

Prime Factorization of 4318

Prime factors of 4318 are 2, 17, 127. Prime factorization of 4318 in exponential form is:

4318 = 21 × 171 × 1271

Now multiplying the highest exponent prime factors to calculate the LCM of 4305 and 4318.

LCM(4305,4318) = 31 × 51 × 71 × 411 × 21 × 171 × 1271
LCM(4305,4318) = 18588990