What is the Least Common Multiple of 256 and 276?
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 256 and 276 is 17664.
LCM(256,276) = 17664
Least Common Multiple of 256 and 276 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 256 and 276, than apply into the LCM equation.
GCF(256,276) = 4
LCM(256,276) = ( 256 × 276) / 4
LCM(256,276) = 70656 / 4
LCM(256,276) = 17664
Least Common Multiple (LCM) of 256 and 276 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 256 and 276. First we will calculate the prime factors of 256 and 276.
Prime Factorization of 256
Prime factors of 256 are 2. Prime factorization of 256 in exponential form is:
256 = 28
Prime Factorization of 276
Prime factors of 276 are 2, 3, 23. Prime factorization of 276 in exponential form is:
276 = 22 × 31 × 231
Now multiplying the highest exponent prime factors to calculate the LCM of 256 and 276.
LCM(256,276) = 28 × 31 × 231
LCM(256,276) = 17664
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