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What is the Least Common Multiple of 40338 and 40342?

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 40338 and 40342 is 813657798.

LCM(40338,40342) = 813657798

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Least Common Multiple of 40338 and 40342 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40338 and 40342, than apply into the LCM equation.

GCF(40338,40342) = 2
LCM(40338,40342) = ( 40338 × 40342) / 2
LCM(40338,40342) = 1627315596 / 2
LCM(40338,40342) = 813657798

Least Common Multiple (LCM) of 40338 and 40342 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40338 and 40342. First we will calculate the prime factors of 40338 and 40342.

Prime Factorization of 40338

Prime factors of 40338 are 2, 3, 83. Prime factorization of 40338 in exponential form is:

40338 = 21 × 35 × 831

Prime Factorization of 40342

Prime factors of 40342 are 2, 23, 877. Prime factorization of 40342 in exponential form is:

40342 = 21 × 231 × 8771

Now multiplying the highest exponent prime factors to calculate the LCM of 40338 and 40342.

LCM(40338,40342) = 21 × 35 × 831 × 231 × 8771
LCM(40338,40342) = 813657798