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What is the Least Common Multiple of 40840 and 40851?

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 40851 is 1668354840.

LCM(40840,40851) = 1668354840

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Least Common Multiple of 40840 and 40851 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 40851, than apply into the LCM equation.

GCF(40840,40851) = 1
LCM(40840,40851) = ( 40840 × 40851) / 1
LCM(40840,40851) = 1668354840 / 1
LCM(40840,40851) = 1668354840

Least Common Multiple (LCM) of 40840 and 40851 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40840 and 40851. First we will calculate the prime factors of 40840 and 40851.

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 40851

Prime factors of 40851 are 3, 17, 89. Prime factorization of 40851 in exponential form is:

40851 = 33 × 171 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 40840 and 40851.

LCM(40840,40851) = 23 × 51 × 10211 × 33 × 171 × 891
LCM(40840,40851) = 1668354840