What is the Least Common Multiple of 284 and 289?
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 284 and 289 is 82076.
LCM(284,289) = 82076
Least Common Multiple of 284 and 289 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 284 and 289, than apply into the LCM equation.
GCF(284,289) = 1
LCM(284,289) = ( 284 × 289) / 1
LCM(284,289) = 82076 / 1
LCM(284,289) = 82076
Least Common Multiple (LCM) of 284 and 289 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 284 and 289. First we will calculate the prime factors of 284 and 289.
Prime Factorization of 284
Prime factors of 284 are 2, 71. Prime factorization of 284 in exponential form is:
284 = 22 × 711
Prime Factorization of 289
Prime factors of 289 are 17. Prime factorization of 289 in exponential form is:
289 = 172
Now multiplying the highest exponent prime factors to calculate the LCM of 284 and 289.
LCM(284,289) = 22 × 711 × 172
LCM(284,289) = 82076
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