What is the Least Common Multiple of 270 and 288?
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 270 and 288 is 4320.
LCM(270,288) = 4320
Least Common Multiple of 270 and 288 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 270 and 288, than apply into the LCM equation.
GCF(270,288) = 18
LCM(270,288) = ( 270 × 288) / 18
LCM(270,288) = 77760 / 18
LCM(270,288) = 4320
Least Common Multiple (LCM) of 270 and 288 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 270 and 288. First we will calculate the prime factors of 270 and 288.
Prime Factorization of 270
Prime factors of 270 are 2, 3, 5. Prime factorization of 270 in exponential form is:
270 = 21 × 33 × 51
Prime Factorization of 288
Prime factors of 288 are 2, 3. Prime factorization of 288 in exponential form is:
288 = 25 × 32
Now multiplying the highest exponent prime factors to calculate the LCM of 270 and 288.
LCM(270,288) = 25 × 33 × 51
LCM(270,288) = 4320
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