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What is the Least Common Multiple of 20733 and 20745?

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 20733 and 20745 is 143368695.

LCM(20733,20745) = 143368695

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Least Common Multiple of 20733 and 20745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20733 and 20745, than apply into the LCM equation.

GCF(20733,20745) = 3
LCM(20733,20745) = ( 20733 × 20745) / 3
LCM(20733,20745) = 430106085 / 3
LCM(20733,20745) = 143368695

Least Common Multiple (LCM) of 20733 and 20745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20733 and 20745. First we will calculate the prime factors of 20733 and 20745.

Prime Factorization of 20733

Prime factors of 20733 are 3, 6911. Prime factorization of 20733 in exponential form is:

20733 = 31 × 69111

Prime Factorization of 20745

Prime factors of 20745 are 3, 5, 461. Prime factorization of 20745 in exponential form is:

20745 = 32 × 51 × 4611

Now multiplying the highest exponent prime factors to calculate the LCM of 20733 and 20745.

LCM(20733,20745) = 32 × 69111 × 51 × 4611
LCM(20733,20745) = 143368695