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What is the Least Common Multiple of 265 and 278?

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 265 and 278 is 73670.

LCM(265,278) = 73670

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Least Common Multiple of 265 and 278 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 265 and 278, than apply into the LCM equation.

GCF(265,278) = 1
LCM(265,278) = ( 265 × 278) / 1
LCM(265,278) = 73670 / 1
LCM(265,278) = 73670

Least Common Multiple (LCM) of 265 and 278 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 265 and 278. First we will calculate the prime factors of 265 and 278.

Prime Factorization of 265

Prime factors of 265 are 5, 53. Prime factorization of 265 in exponential form is:

265 = 51 × 531

Prime Factorization of 278

Prime factors of 278 are 2, 139. Prime factorization of 278 in exponential form is:

278 = 21 × 1391

Now multiplying the highest exponent prime factors to calculate the LCM of 265 and 278.

LCM(265,278) = 51 × 531 × 21 × 1391
LCM(265,278) = 73670