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What is the Least Common Multiple of 16383 and 16403?

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 16383 and 16403 is 268730349.

LCM(16383,16403) = 268730349

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Least Common Multiple of 16383 and 16403 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16383 and 16403, than apply into the LCM equation.

GCF(16383,16403) = 1
LCM(16383,16403) = ( 16383 × 16403) / 1
LCM(16383,16403) = 268730349 / 1
LCM(16383,16403) = 268730349

Least Common Multiple (LCM) of 16383 and 16403 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16383 and 16403. First we will calculate the prime factors of 16383 and 16403.

Prime Factorization of 16383

Prime factors of 16383 are 3, 43, 127. Prime factorization of 16383 in exponential form is:

16383 = 31 × 431 × 1271

Prime Factorization of 16403

Prime factors of 16403 are 47, 349. Prime factorization of 16403 in exponential form is:

16403 = 471 × 3491

Now multiplying the highest exponent prime factors to calculate the LCM of 16383 and 16403.

LCM(16383,16403) = 31 × 431 × 1271 × 471 × 3491
LCM(16383,16403) = 268730349