What is the Least Common Multiple of 320 and 329?
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 320 and 329 is 105280.
LCM(320,329) = 105280
Least Common Multiple of 320 and 329 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 320 and 329, than apply into the LCM equation.
GCF(320,329) = 1
LCM(320,329) = ( 320 × 329) / 1
LCM(320,329) = 105280 / 1
LCM(320,329) = 105280
Least Common Multiple (LCM) of 320 and 329 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 320 and 329. First we will calculate the prime factors of 320 and 329.
Prime Factorization of 320
Prime factors of 320 are 2, 5. Prime factorization of 320 in exponential form is:
320 = 26 × 51
Prime Factorization of 329
Prime factors of 329 are 7, 47. Prime factorization of 329 in exponential form is:
329 = 71 × 471
Now multiplying the highest exponent prime factors to calculate the LCM of 320 and 329.
LCM(320,329) = 26 × 51 × 71 × 471
LCM(320,329) = 105280
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