What is the Least Common Multiple of 285 and 301?
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 285 and 301 is 85785.
LCM(285,301) = 85785
Least Common Multiple of 285 and 301 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 285 and 301, than apply into the LCM equation.
GCF(285,301) = 1
LCM(285,301) = ( 285 × 301) / 1
LCM(285,301) = 85785 / 1
LCM(285,301) = 85785
Least Common Multiple (LCM) of 285 and 301 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 285 and 301. First we will calculate the prime factors of 285 and 301.
Prime Factorization of 285
Prime factors of 285 are 3, 5, 19. Prime factorization of 285 in exponential form is:
285 = 31 × 51 × 191
Prime Factorization of 301
Prime factors of 301 are 7, 43. Prime factorization of 301 in exponential form is:
301 = 71 × 431
Now multiplying the highest exponent prime factors to calculate the LCM of 285 and 301.
LCM(285,301) = 31 × 51 × 191 × 71 × 431
LCM(285,301) = 85785
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