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What is the Least Common Multiple of 20862 and 20876?

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 20862 and 20876 is 217757556.

LCM(20862,20876) = 217757556

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Least Common Multiple of 20862 and 20876 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20862 and 20876, than apply into the LCM equation.

GCF(20862,20876) = 2
LCM(20862,20876) = ( 20862 × 20876) / 2
LCM(20862,20876) = 435515112 / 2
LCM(20862,20876) = 217757556

Least Common Multiple (LCM) of 20862 and 20876 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20862 and 20876. First we will calculate the prime factors of 20862 and 20876.

Prime Factorization of 20862

Prime factors of 20862 are 2, 3, 19, 61. Prime factorization of 20862 in exponential form is:

20862 = 21 × 32 × 191 × 611

Prime Factorization of 20876

Prime factors of 20876 are 2, 17, 307. Prime factorization of 20876 in exponential form is:

20876 = 22 × 171 × 3071

Now multiplying the highest exponent prime factors to calculate the LCM of 20862 and 20876.

LCM(20862,20876) = 22 × 32 × 191 × 611 × 171 × 3071
LCM(20862,20876) = 217757556