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What is the Least Common Multiple of 78830 and 78843?

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 78830 and 78843 is 6215193690.

LCM(78830,78843) = 6215193690

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Least Common Multiple of 78830 and 78843 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78830 and 78843, than apply into the LCM equation.

GCF(78830,78843) = 1
LCM(78830,78843) = ( 78830 × 78843) / 1
LCM(78830,78843) = 6215193690 / 1
LCM(78830,78843) = 6215193690

Least Common Multiple (LCM) of 78830 and 78843 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78830 and 78843. First we will calculate the prime factors of 78830 and 78843.

Prime Factorization of 78830

Prime factors of 78830 are 2, 5, 7883. Prime factorization of 78830 in exponential form is:

78830 = 21 × 51 × 78831

Prime Factorization of 78843

Prime factors of 78843 are 3, 41, 641. Prime factorization of 78843 in exponential form is:

78843 = 31 × 411 × 6411

Now multiplying the highest exponent prime factors to calculate the LCM of 78830 and 78843.

LCM(78830,78843) = 21 × 51 × 78831 × 31 × 411 × 6411
LCM(78830,78843) = 6215193690