What is the Least Common Multiple of 276 and 285?
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 276 and 285 is 26220.
LCM(276,285) = 26220
Least Common Multiple of 276 and 285 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 276 and 285, than apply into the LCM equation.
GCF(276,285) = 3
LCM(276,285) = ( 276 × 285) / 3
LCM(276,285) = 78660 / 3
LCM(276,285) = 26220
Least Common Multiple (LCM) of 276 and 285 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 276 and 285. First we will calculate the prime factors of 276 and 285.
Prime Factorization of 276
Prime factors of 276 are 2, 3, 23. Prime factorization of 276 in exponential form is:
276 = 22 × 31 × 231
Prime Factorization of 285
Prime factors of 285 are 3, 5, 19. Prime factorization of 285 in exponential form is:
285 = 31 × 51 × 191
Now multiplying the highest exponent prime factors to calculate the LCM of 276 and 285.
LCM(276,285) = 22 × 31 × 231 × 51 × 191
LCM(276,285) = 26220
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