What is the Least Common Multiple of 328 and 345?
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 328 and 345 is 113160.
LCM(328,345) = 113160
Least Common Multiple of 328 and 345 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 328 and 345, than apply into the LCM equation.
GCF(328,345) = 1
LCM(328,345) = ( 328 × 345) / 1
LCM(328,345) = 113160 / 1
LCM(328,345) = 113160
Least Common Multiple (LCM) of 328 and 345 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 328 and 345. First we will calculate the prime factors of 328 and 345.
Prime Factorization of 328
Prime factors of 328 are 2, 41. Prime factorization of 328 in exponential form is:
328 = 23 × 411
Prime Factorization of 345
Prime factors of 345 are 3, 5, 23. Prime factorization of 345 in exponential form is:
345 = 31 × 51 × 231
Now multiplying the highest exponent prime factors to calculate the LCM of 328 and 345.
LCM(328,345) = 23 × 411 × 31 × 51 × 231
LCM(328,345) = 113160
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