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What is the Least Common Multiple of 1211 and 1227?

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 1211 and 1227 is 1485897.

LCM(1211,1227) = 1485897

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Least Common Multiple of 1211 and 1227 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1211 and 1227, than apply into the LCM equation.

GCF(1211,1227) = 1
LCM(1211,1227) = ( 1211 × 1227) / 1
LCM(1211,1227) = 1485897 / 1
LCM(1211,1227) = 1485897

Least Common Multiple (LCM) of 1211 and 1227 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1211 and 1227. First we will calculate the prime factors of 1211 and 1227.

Prime Factorization of 1211

Prime factors of 1211 are 7, 173. Prime factorization of 1211 in exponential form is:

1211 = 71 × 1731

Prime Factorization of 1227

Prime factors of 1227 are 3, 409. Prime factorization of 1227 in exponential form is:

1227 = 31 × 4091

Now multiplying the highest exponent prime factors to calculate the LCM of 1211 and 1227.

LCM(1211,1227) = 71 × 1731 × 31 × 4091
LCM(1211,1227) = 1485897