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What is the Least Common Multiple of 15222 and 15230?

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 15222 and 15230 is 115915530.

LCM(15222,15230) = 115915530

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Least Common Multiple of 15222 and 15230 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15222 and 15230, than apply into the LCM equation.

GCF(15222,15230) = 2
LCM(15222,15230) = ( 15222 × 15230) / 2
LCM(15222,15230) = 231831060 / 2
LCM(15222,15230) = 115915530

Least Common Multiple (LCM) of 15222 and 15230 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15222 and 15230. First we will calculate the prime factors of 15222 and 15230.

Prime Factorization of 15222

Prime factors of 15222 are 2, 3, 43, 59. Prime factorization of 15222 in exponential form is:

15222 = 21 × 31 × 431 × 591

Prime Factorization of 15230

Prime factors of 15230 are 2, 5, 1523. Prime factorization of 15230 in exponential form is:

15230 = 21 × 51 × 15231

Now multiplying the highest exponent prime factors to calculate the LCM of 15222 and 15230.

LCM(15222,15230) = 21 × 31 × 431 × 591 × 51 × 15231
LCM(15222,15230) = 115915530