What is the Least Common Multiple of 18375 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 18375 and 18381 is 112583625.
LCM(18375,18381) = 112583625
Least Common Multiple of 18375 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 18375 and 18381, than apply into the LCM equation.
GCF(18375,18381) = 3
LCM(18375,18381) = ( 18375 × 18381) / 3
LCM(18375,18381) = 337750875 / 3
LCM(18375,18381) = 112583625
Least Common Multiple (LCM) of 18375 and 18381 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 18375 and 18381. First we will calculate the prime factors of 18375 and 18381.
Prime Factorization of 18375
Prime factors of 18375 are 3, 5, 7. Prime factorization of 18375 in exponential form is:
18375 = 31 × 53 × 72
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 18375 and 18381.
LCM(18375,18381) = 31 × 53 × 72 × 111 × 5571
LCM(18375,18381) = 112583625
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