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What is the Least Common Multiple of 20850 and 20866?

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 20850 and 20866 is 217528050.

LCM(20850,20866) = 217528050

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Least Common Multiple of 20850 and 20866 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20850 and 20866, than apply into the LCM equation.

GCF(20850,20866) = 2
LCM(20850,20866) = ( 20850 × 20866) / 2
LCM(20850,20866) = 435056100 / 2
LCM(20850,20866) = 217528050

Least Common Multiple (LCM) of 20850 and 20866 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20850 and 20866. First we will calculate the prime factors of 20850 and 20866.

Prime Factorization of 20850

Prime factors of 20850 are 2, 3, 5, 139. Prime factorization of 20850 in exponential form is:

20850 = 21 × 31 × 52 × 1391

Prime Factorization of 20866

Prime factors of 20866 are 2, 10433. Prime factorization of 20866 in exponential form is:

20866 = 21 × 104331

Now multiplying the highest exponent prime factors to calculate the LCM of 20850 and 20866.

LCM(20850,20866) = 21 × 31 × 52 × 1391 × 104331
LCM(20850,20866) = 217528050