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What is the Least Common Multiple of 20919 and 20937?

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 20937 is 145993701.

LCM(20919,20937) = 145993701

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Least Common Multiple of 20919 and 20937 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 20937, than apply into the LCM equation.

GCF(20919,20937) = 3
LCM(20919,20937) = ( 20919 × 20937) / 3
LCM(20919,20937) = 437981103 / 3
LCM(20919,20937) = 145993701

Least Common Multiple (LCM) of 20919 and 20937 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20919 and 20937. First we will calculate the prime factors of 20919 and 20937.

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 20937

Prime factors of 20937 are 3, 7, 997. Prime factorization of 20937 in exponential form is:

20937 = 31 × 71 × 9971

Now multiplying the highest exponent prime factors to calculate the LCM of 20919 and 20937.

LCM(20919,20937) = 31 × 191 × 3671 × 71 × 9971
LCM(20919,20937) = 145993701