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What is the Least Common Multiple of 20919 and 20923?

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 20919 and 20923 is 437688237.

LCM(20919,20923) = 437688237

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Least Common Multiple of 20919 and 20923 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20919 and 20923, than apply into the LCM equation.

GCF(20919,20923) = 1
LCM(20919,20923) = ( 20919 × 20923) / 1
LCM(20919,20923) = 437688237 / 1
LCM(20919,20923) = 437688237

Least Common Multiple (LCM) of 20919 and 20923 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20919 and 20923. First we will calculate the prime factors of 20919 and 20923.

Prime Factorization of 20919

Prime factors of 20919 are 3, 19, 367. Prime factorization of 20919 in exponential form is:

20919 = 31 × 191 × 3671

Prime Factorization of 20923

Prime factors of 20923 are 7, 61. Prime factorization of 20923 in exponential form is:

20923 = 73 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 20919 and 20923.

LCM(20919,20923) = 31 × 191 × 3671 × 73 × 611
LCM(20919,20923) = 437688237