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What is the Least Common Multiple of 4321 and 4338?

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 4321 and 4338 is 18744498.

LCM(4321,4338) = 18744498

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Least Common Multiple of 4321 and 4338 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4321 and 4338, than apply into the LCM equation.

GCF(4321,4338) = 1
LCM(4321,4338) = ( 4321 × 4338) / 1
LCM(4321,4338) = 18744498 / 1
LCM(4321,4338) = 18744498

Least Common Multiple (LCM) of 4321 and 4338 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4321 and 4338. First we will calculate the prime factors of 4321 and 4338.

Prime Factorization of 4321

Prime factors of 4321 are 29, 149. Prime factorization of 4321 in exponential form is:

4321 = 291 × 1491

Prime Factorization of 4338

Prime factors of 4338 are 2, 3, 241. Prime factorization of 4338 in exponential form is:

4338 = 21 × 32 × 2411

Now multiplying the highest exponent prime factors to calculate the LCM of 4321 and 4338.

LCM(4321,4338) = 291 × 1491 × 21 × 32 × 2411
LCM(4321,4338) = 18744498