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What is the Least Common Multiple of 272 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 272 and 276 is 18768.

LCM(272,276) = 18768

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Least Common Multiple of 272 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 272 and 276, than apply into the LCM equation.

GCF(272,276) = 4
LCM(272,276) = ( 272 × 276) / 4
LCM(272,276) = 75072 / 4
LCM(272,276) = 18768

Least Common Multiple (LCM) of 272 and 276 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 272 and 276. First we will calculate the prime factors of 272 and 276.

Prime Factorization of 272

Prime factors of 272 are 2, 17. Prime factorization of 272 in exponential form is:

272 = 24 × 171

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 272 and 276.

LCM(272,276) = 24 × 171 × 31 × 231
LCM(272,276) = 18768