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What is the Least Common Multiple of 255 and 262?

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 255 and 262 is 66810.

LCM(255,262) = 66810

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Least Common Multiple of 255 and 262 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 255 and 262, than apply into the LCM equation.

GCF(255,262) = 1
LCM(255,262) = ( 255 × 262) / 1
LCM(255,262) = 66810 / 1
LCM(255,262) = 66810

Least Common Multiple (LCM) of 255 and 262 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 255 and 262. First we will calculate the prime factors of 255 and 262.

Prime Factorization of 255

Prime factors of 255 are 3, 5, 17. Prime factorization of 255 in exponential form is:

255 = 31 × 51 × 171

Prime Factorization of 262

Prime factors of 262 are 2, 131. Prime factorization of 262 in exponential form is:

262 = 21 × 1311

Now multiplying the highest exponent prime factors to calculate the LCM of 255 and 262.

LCM(255,262) = 31 × 51 × 171 × 21 × 1311
LCM(255,262) = 66810