What is the Least Common Multiple of 18369 and 18381?
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 18369 and 18381 is 112546863.
LCM(18369,18381) = 112546863
Least Common Multiple of 18369 and 18381 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18369 and 18381, than apply into the LCM equation.
GCF(18369,18381) = 3
LCM(18369,18381) = ( 18369 × 18381) / 3
LCM(18369,18381) = 337640589 / 3
LCM(18369,18381) = 112546863
Least Common Multiple (LCM) of 18369 and 18381 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 18369 and 18381. First we will calculate the prime factors of 18369 and 18381.
Prime Factorization of 18369
Prime factors of 18369 are 3, 13, 157. Prime factorization of 18369 in exponential form is:
18369 = 32 × 131 × 1571
Prime Factorization of 18381
Prime factors of 18381 are 3, 11, 557. Prime factorization of 18381 in exponential form is:
18381 = 31 × 111 × 5571
Now multiplying the highest exponent prime factors to calculate the LCM of 18369 and 18381.
LCM(18369,18381) = 32 × 131 × 1571 × 111 × 5571
LCM(18369,18381) = 112546863
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