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What is the Least Common Multiple of 47838 and 47845?

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 47838 and 47845 is 326972730.

LCM(47838,47845) = 326972730

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Least Common Multiple of 47838 and 47845 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47838 and 47845, than apply into the LCM equation.

GCF(47838,47845) = 7
LCM(47838,47845) = ( 47838 × 47845) / 7
LCM(47838,47845) = 2288809110 / 7
LCM(47838,47845) = 326972730

Least Common Multiple (LCM) of 47838 and 47845 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47838 and 47845. First we will calculate the prime factors of 47838 and 47845.

Prime Factorization of 47838

Prime factors of 47838 are 2, 3, 7, 17, 67. Prime factorization of 47838 in exponential form is:

47838 = 21 × 31 × 71 × 171 × 671

Prime Factorization of 47845

Prime factors of 47845 are 5, 7, 1367. Prime factorization of 47845 in exponential form is:

47845 = 51 × 71 × 13671

Now multiplying the highest exponent prime factors to calculate the LCM of 47838 and 47845.

LCM(47838,47845) = 21 × 31 × 71 × 171 × 671 × 51 × 13671
LCM(47838,47845) = 326972730