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What is the Least Common Multiple of 20427 and 20435?

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 20427 and 20435 is 417425745.

LCM(20427,20435) = 417425745

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Least Common Multiple of 20427 and 20435 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20427 and 20435, than apply into the LCM equation.

GCF(20427,20435) = 1
LCM(20427,20435) = ( 20427 × 20435) / 1
LCM(20427,20435) = 417425745 / 1
LCM(20427,20435) = 417425745

Least Common Multiple (LCM) of 20427 and 20435 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20427 and 20435. First we will calculate the prime factors of 20427 and 20435.

Prime Factorization of 20427

Prime factors of 20427 are 3, 11, 619. Prime factorization of 20427 in exponential form is:

20427 = 31 × 111 × 6191

Prime Factorization of 20435

Prime factors of 20435 are 5, 61, 67. Prime factorization of 20435 in exponential form is:

20435 = 51 × 611 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 20427 and 20435.

LCM(20427,20435) = 31 × 111 × 6191 × 51 × 611 × 671
LCM(20427,20435) = 417425745