What is the Least Common Multiple of 323 and 340?
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 323 and 340 is 6460.
LCM(323,340) = 6460
Least Common Multiple of 323 and 340 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 323 and 340, than apply into the LCM equation.
GCF(323,340) = 17
LCM(323,340) = ( 323 × 340) / 17
LCM(323,340) = 109820 / 17
LCM(323,340) = 6460
Least Common Multiple (LCM) of 323 and 340 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 323 and 340. First we will calculate the prime factors of 323 and 340.
Prime Factorization of 323
Prime factors of 323 are 17, 19. Prime factorization of 323 in exponential form is:
323 = 171 × 191
Prime Factorization of 340
Prime factors of 340 are 2, 5, 17. Prime factorization of 340 in exponential form is:
340 = 22 × 51 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 323 and 340.
LCM(323,340) = 171 × 191 × 22 × 51
LCM(323,340) = 6460
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