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What is the Least Common Multiple of 1282 and 1293?

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 1282 and 1293 is 1657626.

LCM(1282,1293) = 1657626

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Least Common Multiple of 1282 and 1293 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1282 and 1293, than apply into the LCM equation.

GCF(1282,1293) = 1
LCM(1282,1293) = ( 1282 × 1293) / 1
LCM(1282,1293) = 1657626 / 1
LCM(1282,1293) = 1657626

Least Common Multiple (LCM) of 1282 and 1293 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1282 and 1293. First we will calculate the prime factors of 1282 and 1293.

Prime Factorization of 1282

Prime factors of 1282 are 2, 641. Prime factorization of 1282 in exponential form is:

1282 = 21 × 6411

Prime Factorization of 1293

Prime factors of 1293 are 3, 431. Prime factorization of 1293 in exponential form is:

1293 = 31 × 4311

Now multiplying the highest exponent prime factors to calculate the LCM of 1282 and 1293.

LCM(1282,1293) = 21 × 6411 × 31 × 4311
LCM(1282,1293) = 1657626