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What is the Least Common Multiple of 40836 and 40856?

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 40836 and 40856 is 417098904.

LCM(40836,40856) = 417098904

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Least Common Multiple of 40836 and 40856 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40836 and 40856, than apply into the LCM equation.

GCF(40836,40856) = 4
LCM(40836,40856) = ( 40836 × 40856) / 4
LCM(40836,40856) = 1668395616 / 4
LCM(40836,40856) = 417098904

Least Common Multiple (LCM) of 40836 and 40856 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40836 and 40856. First we will calculate the prime factors of 40836 and 40856.

Prime Factorization of 40836

Prime factors of 40836 are 2, 3, 41, 83. Prime factorization of 40836 in exponential form is:

40836 = 22 × 31 × 411 × 831

Prime Factorization of 40856

Prime factors of 40856 are 2, 5107. Prime factorization of 40856 in exponential form is:

40856 = 23 × 51071

Now multiplying the highest exponent prime factors to calculate the LCM of 40836 and 40856.

LCM(40836,40856) = 23 × 31 × 411 × 831 × 51071
LCM(40836,40856) = 417098904