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What is the Least Common Multiple of 12280 and 12291?

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 12280 and 12291 is 150933480.

LCM(12280,12291) = 150933480

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Least Common Multiple of 12280 and 12291 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12280 and 12291, than apply into the LCM equation.

GCF(12280,12291) = 1
LCM(12280,12291) = ( 12280 × 12291) / 1
LCM(12280,12291) = 150933480 / 1
LCM(12280,12291) = 150933480

Least Common Multiple (LCM) of 12280 and 12291 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12280 and 12291. First we will calculate the prime factors of 12280 and 12291.

Prime Factorization of 12280

Prime factors of 12280 are 2, 5, 307. Prime factorization of 12280 in exponential form is:

12280 = 23 × 51 × 3071

Prime Factorization of 12291

Prime factors of 12291 are 3, 17, 241. Prime factorization of 12291 in exponential form is:

12291 = 31 × 171 × 2411

Now multiplying the highest exponent prime factors to calculate the LCM of 12280 and 12291.

LCM(12280,12291) = 23 × 51 × 3071 × 31 × 171 × 2411
LCM(12280,12291) = 150933480