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What is the Least Common Multiple of 55209 and 55215?

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 55209 and 55215 is 1016121645.

LCM(55209,55215) = 1016121645

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Least Common Multiple of 55209 and 55215 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55209 and 55215, than apply into the LCM equation.

GCF(55209,55215) = 3
LCM(55209,55215) = ( 55209 × 55215) / 3
LCM(55209,55215) = 3048364935 / 3
LCM(55209,55215) = 1016121645

Least Common Multiple (LCM) of 55209 and 55215 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55209 and 55215. First we will calculate the prime factors of 55209 and 55215.

Prime Factorization of 55209

Prime factors of 55209 are 3, 7, 11, 239. Prime factorization of 55209 in exponential form is:

55209 = 31 × 71 × 111 × 2391

Prime Factorization of 55215

Prime factors of 55215 are 3, 5, 409. Prime factorization of 55215 in exponential form is:

55215 = 33 × 51 × 4091

Now multiplying the highest exponent prime factors to calculate the LCM of 55209 and 55215.

LCM(55209,55215) = 33 × 71 × 111 × 2391 × 51 × 4091
LCM(55209,55215) = 1016121645