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What is the Least Common Multiple of 19873 and 19884?

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 19873 and 19884 is 395154732.

LCM(19873,19884) = 395154732

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Least Common Multiple of 19873 and 19884 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19873 and 19884, than apply into the LCM equation.

GCF(19873,19884) = 1
LCM(19873,19884) = ( 19873 × 19884) / 1
LCM(19873,19884) = 395154732 / 1
LCM(19873,19884) = 395154732

Least Common Multiple (LCM) of 19873 and 19884 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19873 and 19884. First we will calculate the prime factors of 19873 and 19884.

Prime Factorization of 19873

Prime factors of 19873 are 7, 17, 167. Prime factorization of 19873 in exponential form is:

19873 = 71 × 171 × 1671

Prime Factorization of 19884

Prime factors of 19884 are 2, 3, 1657. Prime factorization of 19884 in exponential form is:

19884 = 22 × 31 × 16571

Now multiplying the highest exponent prime factors to calculate the LCM of 19873 and 19884.

LCM(19873,19884) = 71 × 171 × 1671 × 22 × 31 × 16571
LCM(19873,19884) = 395154732