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What is the Least Common Multiple of 2261 and 2278?

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 2261 and 2278 is 302974.

LCM(2261,2278) = 302974

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Least Common Multiple of 2261 and 2278 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2261 and 2278, than apply into the LCM equation.

GCF(2261,2278) = 17
LCM(2261,2278) = ( 2261 × 2278) / 17
LCM(2261,2278) = 5150558 / 17
LCM(2261,2278) = 302974

Least Common Multiple (LCM) of 2261 and 2278 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2261 and 2278. First we will calculate the prime factors of 2261 and 2278.

Prime Factorization of 2261

Prime factors of 2261 are 7, 17, 19. Prime factorization of 2261 in exponential form is:

2261 = 71 × 171 × 191

Prime Factorization of 2278

Prime factors of 2278 are 2, 17, 67. Prime factorization of 2278 in exponential form is:

2278 = 21 × 171 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 2261 and 2278.

LCM(2261,2278) = 71 × 171 × 191 × 21 × 671
LCM(2261,2278) = 302974