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What is the Least Common Multiple of 15204 and 15220?

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 15204 and 15220 is 57851220.

LCM(15204,15220) = 57851220

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Least Common Multiple of 15204 and 15220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15204 and 15220, than apply into the LCM equation.

GCF(15204,15220) = 4
LCM(15204,15220) = ( 15204 × 15220) / 4
LCM(15204,15220) = 231404880 / 4
LCM(15204,15220) = 57851220

Least Common Multiple (LCM) of 15204 and 15220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15204 and 15220. First we will calculate the prime factors of 15204 and 15220.

Prime Factorization of 15204

Prime factors of 15204 are 2, 3, 7, 181. Prime factorization of 15204 in exponential form is:

15204 = 22 × 31 × 71 × 1811

Prime Factorization of 15220

Prime factors of 15220 are 2, 5, 761. Prime factorization of 15220 in exponential form is:

15220 = 22 × 51 × 7611

Now multiplying the highest exponent prime factors to calculate the LCM of 15204 and 15220.

LCM(15204,15220) = 22 × 31 × 71 × 1811 × 51 × 7611
LCM(15204,15220) = 57851220