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What is the Least Common Multiple of 40840 and 40850?

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 40840 and 40850 is 166831400.

LCM(40840,40850) = 166831400

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Least Common Multiple of 40840 and 40850 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40840 and 40850, than apply into the LCM equation.

GCF(40840,40850) = 10
LCM(40840,40850) = ( 40840 × 40850) / 10
LCM(40840,40850) = 1668314000 / 10
LCM(40840,40850) = 166831400

Least Common Multiple (LCM) of 40840 and 40850 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40840 and 40850. First we will calculate the prime factors of 40840 and 40850.

Prime Factorization of 40840

Prime factors of 40840 are 2, 5, 1021. Prime factorization of 40840 in exponential form is:

40840 = 23 × 51 × 10211

Prime Factorization of 40850

Prime factors of 40850 are 2, 5, 19, 43. Prime factorization of 40850 in exponential form is:

40850 = 21 × 52 × 191 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 40840 and 40850.

LCM(40840,40850) = 23 × 52 × 10211 × 191 × 431
LCM(40840,40850) = 166831400