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What is the Least Common Multiple of 84626 and 84643?

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 84626 and 84643 is 421352854.

LCM(84626,84643) = 421352854

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Least Common Multiple of 84626 and 84643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84626 and 84643, than apply into the LCM equation.

GCF(84626,84643) = 17
LCM(84626,84643) = ( 84626 × 84643) / 17
LCM(84626,84643) = 7162998518 / 17
LCM(84626,84643) = 421352854

Least Common Multiple (LCM) of 84626 and 84643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84626 and 84643. First we will calculate the prime factors of 84626 and 84643.

Prime Factorization of 84626

Prime factors of 84626 are 2, 17, 19, 131. Prime factorization of 84626 in exponential form is:

84626 = 21 × 171 × 191 × 1311

Prime Factorization of 84643

Prime factors of 84643 are 13, 17, 383. Prime factorization of 84643 in exponential form is:

84643 = 131 × 171 × 3831

Now multiplying the highest exponent prime factors to calculate the LCM of 84626 and 84643.

LCM(84626,84643) = 21 × 171 × 191 × 1311 × 131 × 3831
LCM(84626,84643) = 421352854