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What is the Least Common Multiple of 81830 and 81843?

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 81830 and 81843 is 6697212690.

LCM(81830,81843) = 6697212690

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Least Common Multiple of 81830 and 81843 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81830 and 81843, than apply into the LCM equation.

GCF(81830,81843) = 1
LCM(81830,81843) = ( 81830 × 81843) / 1
LCM(81830,81843) = 6697212690 / 1
LCM(81830,81843) = 6697212690

Least Common Multiple (LCM) of 81830 and 81843 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81830 and 81843. First we will calculate the prime factors of 81830 and 81843.

Prime Factorization of 81830

Prime factors of 81830 are 2, 5, 7, 167. Prime factorization of 81830 in exponential form is:

81830 = 21 × 51 × 72 × 1671

Prime Factorization of 81843

Prime factors of 81843 are 3, 27281. Prime factorization of 81843 in exponential form is:

81843 = 31 × 272811

Now multiplying the highest exponent prime factors to calculate the LCM of 81830 and 81843.

LCM(81830,81843) = 21 × 51 × 72 × 1671 × 31 × 272811
LCM(81830,81843) = 6697212690