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What is the Least Common Multiple of 39831 and 39843?

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 39831 and 39843 is 528995511.

LCM(39831,39843) = 528995511

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Least Common Multiple of 39831 and 39843 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39831 and 39843, than apply into the LCM equation.

GCF(39831,39843) = 3
LCM(39831,39843) = ( 39831 × 39843) / 3
LCM(39831,39843) = 1586986533 / 3
LCM(39831,39843) = 528995511

Least Common Multiple (LCM) of 39831 and 39843 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39831 and 39843. First we will calculate the prime factors of 39831 and 39843.

Prime Factorization of 39831

Prime factors of 39831 are 3, 11, 17, 71. Prime factorization of 39831 in exponential form is:

39831 = 31 × 111 × 171 × 711

Prime Factorization of 39843

Prime factors of 39843 are 3, 19, 233. Prime factorization of 39843 in exponential form is:

39843 = 32 × 191 × 2331

Now multiplying the highest exponent prime factors to calculate the LCM of 39831 and 39843.

LCM(39831,39843) = 32 × 111 × 171 × 711 × 191 × 2331
LCM(39831,39843) = 528995511