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What is the Least Common Multiple of 19221 and 19229?

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 19221 and 19229 is 369600609.

LCM(19221,19229) = 369600609

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Least Common Multiple of 19221 and 19229 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19221 and 19229, than apply into the LCM equation.

GCF(19221,19229) = 1
LCM(19221,19229) = ( 19221 × 19229) / 1
LCM(19221,19229) = 369600609 / 1
LCM(19221,19229) = 369600609

Least Common Multiple (LCM) of 19221 and 19229 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19221 and 19229. First we will calculate the prime factors of 19221 and 19229.

Prime Factorization of 19221

Prime factors of 19221 are 3, 43, 149. Prime factorization of 19221 in exponential form is:

19221 = 31 × 431 × 1491

Prime Factorization of 19229

Prime factors of 19229 are 7, 41, 67. Prime factorization of 19229 in exponential form is:

19229 = 71 × 411 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 19221 and 19229.

LCM(19221,19229) = 31 × 431 × 1491 × 71 × 411 × 671
LCM(19221,19229) = 369600609