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What is the Least Common Multiple of 20726 and 20739?

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 20726 and 20739 is 429836514.

LCM(20726,20739) = 429836514

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Least Common Multiple of 20726 and 20739 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20726 and 20739, than apply into the LCM equation.

GCF(20726,20739) = 1
LCM(20726,20739) = ( 20726 × 20739) / 1
LCM(20726,20739) = 429836514 / 1
LCM(20726,20739) = 429836514

Least Common Multiple (LCM) of 20726 and 20739 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20726 and 20739. First we will calculate the prime factors of 20726 and 20739.

Prime Factorization of 20726

Prime factors of 20726 are 2, 43, 241. Prime factorization of 20726 in exponential form is:

20726 = 21 × 431 × 2411

Prime Factorization of 20739

Prime factors of 20739 are 3, 31, 223. Prime factorization of 20739 in exponential form is:

20739 = 31 × 311 × 2231

Now multiplying the highest exponent prime factors to calculate the LCM of 20726 and 20739.

LCM(20726,20739) = 21 × 431 × 2411 × 31 × 311 × 2231
LCM(20726,20739) = 429836514