What is the Least Common Multiple of 342 and 361?
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 342 and 361 is 6498.
LCM(342,361) = 6498
Least Common Multiple of 342 and 361 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 342 and 361, than apply into the LCM equation.
GCF(342,361) = 19
LCM(342,361) = ( 342 × 361) / 19
LCM(342,361) = 123462 / 19
LCM(342,361) = 6498
Least Common Multiple (LCM) of 342 and 361 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 342 and 361. First we will calculate the prime factors of 342 and 361.
Prime Factorization of 342
Prime factors of 342 are 2, 3, 19. Prime factorization of 342 in exponential form is:
342 = 21 × 32 × 191
Prime Factorization of 361
Prime factors of 361 are 19. Prime factorization of 361 in exponential form is:
361 = 192
Now multiplying the highest exponent prime factors to calculate the LCM of 342 and 361.
LCM(342,361) = 21 × 32 × 192
LCM(342,361) = 6498
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