What is the Least Common Multiple of 18396 and 18414?
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 18396 and 18414 is 18819108.
LCM(18396,18414) = 18819108
Least Common Multiple of 18396 and 18414 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18396 and 18414, than apply into the LCM equation.
GCF(18396,18414) = 18
LCM(18396,18414) = ( 18396 × 18414) / 18
LCM(18396,18414) = 338743944 / 18
LCM(18396,18414) = 18819108
Least Common Multiple (LCM) of 18396 and 18414 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 18396 and 18414. First we will calculate the prime factors of 18396 and 18414.
Prime Factorization of 18396
Prime factors of 18396 are 2, 3, 7, 73. Prime factorization of 18396 in exponential form is:
18396 = 22 × 32 × 71 × 731
Prime Factorization of 18414
Prime factors of 18414 are 2, 3, 11, 31. Prime factorization of 18414 in exponential form is:
18414 = 21 × 33 × 111 × 311
Now multiplying the highest exponent prime factors to calculate the LCM of 18396 and 18414.
LCM(18396,18414) = 22 × 33 × 71 × 731 × 111 × 311
LCM(18396,18414) = 18819108
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