What is the Least Common Multiple of 225 and 243?
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 225 and 243 is 6075.
LCM(225,243) = 6075
Least Common Multiple of 225 and 243 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 225 and 243, than apply into the LCM equation.
GCF(225,243) = 9
LCM(225,243) = ( 225 × 243) / 9
LCM(225,243) = 54675 / 9
LCM(225,243) = 6075
Least Common Multiple (LCM) of 225 and 243 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 225 and 243. First we will calculate the prime factors of 225 and 243.
Prime Factorization of 225
Prime factors of 225 are 3, 5. Prime factorization of 225 in exponential form is:
225 = 32 × 52
Prime Factorization of 243
Prime factors of 243 are 3. Prime factorization of 243 in exponential form is:
243 = 35
Now multiplying the highest exponent prime factors to calculate the LCM of 225 and 243.
LCM(225,243) = 35 × 52
LCM(225,243) = 6075
Related Least Common Multiples of 225
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Related Least Common Multiples of 243
- LCM of 243 and 247
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