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What is the Least Common Multiple of 21746 and 21750?

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 21746 and 21750 is 236487750.

LCM(21746,21750) = 236487750

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Least Common Multiple of 21746 and 21750 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21746 and 21750, than apply into the LCM equation.

GCF(21746,21750) = 2
LCM(21746,21750) = ( 21746 × 21750) / 2
LCM(21746,21750) = 472975500 / 2
LCM(21746,21750) = 236487750

Least Common Multiple (LCM) of 21746 and 21750 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21746 and 21750. First we will calculate the prime factors of 21746 and 21750.

Prime Factorization of 21746

Prime factors of 21746 are 2, 83, 131. Prime factorization of 21746 in exponential form is:

21746 = 21 × 831 × 1311

Prime Factorization of 21750

Prime factors of 21750 are 2, 3, 5, 29. Prime factorization of 21750 in exponential form is:

21750 = 21 × 31 × 53 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 21746 and 21750.

LCM(21746,21750) = 21 × 831 × 1311 × 31 × 53 × 291
LCM(21746,21750) = 236487750