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What is the Least Common Multiple of 19822 and 19831?

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 19822 and 19831 is 393090082.

LCM(19822,19831) = 393090082

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Least Common Multiple of 19822 and 19831 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19822 and 19831, than apply into the LCM equation.

GCF(19822,19831) = 1
LCM(19822,19831) = ( 19822 × 19831) / 1
LCM(19822,19831) = 393090082 / 1
LCM(19822,19831) = 393090082

Least Common Multiple (LCM) of 19822 and 19831 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19822 and 19831. First we will calculate the prime factors of 19822 and 19831.

Prime Factorization of 19822

Prime factors of 19822 are 2, 11, 17, 53. Prime factorization of 19822 in exponential form is:

19822 = 21 × 111 × 171 × 531

Prime Factorization of 19831

Prime factors of 19831 are 7, 2833. Prime factorization of 19831 in exponential form is:

19831 = 71 × 28331

Now multiplying the highest exponent prime factors to calculate the LCM of 19822 and 19831.

LCM(19822,19831) = 21 × 111 × 171 × 531 × 71 × 28331
LCM(19822,19831) = 393090082