What is the Least Common Multiple of 17280 and 17296?
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 17280 and 17296 is 18679680.
LCM(17280,17296) = 18679680
Least Common Multiple of 17280 and 17296 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17280 and 17296, than apply into the LCM equation.
GCF(17280,17296) = 16
LCM(17280,17296) = ( 17280 × 17296) / 16
LCM(17280,17296) = 298874880 / 16
LCM(17280,17296) = 18679680
Least Common Multiple (LCM) of 17280 and 17296 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 17280 and 17296. First we will calculate the prime factors of 17280 and 17296.
Prime Factorization of 17280
Prime factors of 17280 are 2, 3, 5. Prime factorization of 17280 in exponential form is:
17280 = 27 × 33 × 51
Prime Factorization of 17296
Prime factors of 17296 are 2, 23, 47. Prime factorization of 17296 in exponential form is:
17296 = 24 × 231 × 471
Now multiplying the highest exponent prime factors to calculate the LCM of 17280 and 17296.
LCM(17280,17296) = 27 × 33 × 51 × 231 × 471
LCM(17280,17296) = 18679680
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