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What is the Least Common Multiple of 20647 and 20652?

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 20647 and 20652 is 426401844.

LCM(20647,20652) = 426401844

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Least Common Multiple of 20647 and 20652 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20647 and 20652, than apply into the LCM equation.

GCF(20647,20652) = 1
LCM(20647,20652) = ( 20647 × 20652) / 1
LCM(20647,20652) = 426401844 / 1
LCM(20647,20652) = 426401844

Least Common Multiple (LCM) of 20647 and 20652 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20647 and 20652. First we will calculate the prime factors of 20647 and 20652.

Prime Factorization of 20647

Prime factors of 20647 are 11, 1877. Prime factorization of 20647 in exponential form is:

20647 = 111 × 18771

Prime Factorization of 20652

Prime factors of 20652 are 2, 3, 1721. Prime factorization of 20652 in exponential form is:

20652 = 22 × 31 × 17211

Now multiplying the highest exponent prime factors to calculate the LCM of 20647 and 20652.

LCM(20647,20652) = 111 × 18771 × 22 × 31 × 17211
LCM(20647,20652) = 426401844