What is the Least Common Multiple of 13885 and 13889?
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 13885 and 13889 is 192848765.
LCM(13885,13889) = 192848765
Least Common Multiple of 13885 and 13889 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13885 and 13889, than apply into the LCM equation.
GCF(13885,13889) = 1
LCM(13885,13889) = ( 13885 × 13889) / 1
LCM(13885,13889) = 192848765 / 1
LCM(13885,13889) = 192848765
Least Common Multiple (LCM) of 13885 and 13889 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 13885 and 13889. First we will calculate the prime factors of 13885 and 13889.
Prime Factorization of 13885
Prime factors of 13885 are 5, 2777. Prime factorization of 13885 in exponential form is:
13885 = 51 × 27771
Prime Factorization of 13889
Prime factors of 13889 are 17, 19, 43. Prime factorization of 13889 in exponential form is:
13889 = 171 × 191 × 431
Now multiplying the highest exponent prime factors to calculate the LCM of 13885 and 13889.
LCM(13885,13889) = 51 × 27771 × 171 × 191 × 431
LCM(13885,13889) = 192848765
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