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What is the Least Common Multiple of 40388 and 40404?

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 40388 and 40404 is 407959188.

LCM(40388,40404) = 407959188

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Least Common Multiple of 40388 and 40404 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40388 and 40404, than apply into the LCM equation.

GCF(40388,40404) = 4
LCM(40388,40404) = ( 40388 × 40404) / 4
LCM(40388,40404) = 1631836752 / 4
LCM(40388,40404) = 407959188

Least Common Multiple (LCM) of 40388 and 40404 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40388 and 40404. First we will calculate the prime factors of 40388 and 40404.

Prime Factorization of 40388

Prime factors of 40388 are 2, 23, 439. Prime factorization of 40388 in exponential form is:

40388 = 22 × 231 × 4391

Prime Factorization of 40404

Prime factors of 40404 are 2, 3, 7, 13, 37. Prime factorization of 40404 in exponential form is:

40404 = 22 × 31 × 71 × 131 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 40388 and 40404.

LCM(40388,40404) = 22 × 231 × 4391 × 31 × 71 × 131 × 371
LCM(40388,40404) = 407959188