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What is the Least Common Multiple of 20535 and 20546?

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 20535 and 20546 is 421912110.

LCM(20535,20546) = 421912110

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Least Common Multiple of 20535 and 20546 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20535 and 20546, than apply into the LCM equation.

GCF(20535,20546) = 1
LCM(20535,20546) = ( 20535 × 20546) / 1
LCM(20535,20546) = 421912110 / 1
LCM(20535,20546) = 421912110

Least Common Multiple (LCM) of 20535 and 20546 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20535 and 20546. First we will calculate the prime factors of 20535 and 20546.

Prime Factorization of 20535

Prime factors of 20535 are 3, 5, 37. Prime factorization of 20535 in exponential form is:

20535 = 31 × 51 × 372

Prime Factorization of 20546

Prime factors of 20546 are 2, 10273. Prime factorization of 20546 in exponential form is:

20546 = 21 × 102731

Now multiplying the highest exponent prime factors to calculate the LCM of 20535 and 20546.

LCM(20535,20546) = 31 × 51 × 372 × 21 × 102731
LCM(20535,20546) = 421912110