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What is the Least Common Multiple of 830 and 843?

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 830 and 843 is 699690.

LCM(830,843) = 699690

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Least Common Multiple of 830 and 843 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 830 and 843, than apply into the LCM equation.

GCF(830,843) = 1
LCM(830,843) = ( 830 × 843) / 1
LCM(830,843) = 699690 / 1
LCM(830,843) = 699690

Least Common Multiple (LCM) of 830 and 843 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 830 and 843. First we will calculate the prime factors of 830 and 843.

Prime Factorization of 830

Prime factors of 830 are 2, 5, 83. Prime factorization of 830 in exponential form is:

830 = 21 × 51 × 831

Prime Factorization of 843

Prime factors of 843 are 3, 281. Prime factorization of 843 in exponential form is:

843 = 31 × 2811

Now multiplying the highest exponent prime factors to calculate the LCM of 830 and 843.

LCM(830,843) = 21 × 51 × 831 × 31 × 2811
LCM(830,843) = 699690