What is the Least Common Multiple of 84105 and 84109?

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 of 84105 and 84109 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84105 and 84109, than apply into the LCM equation.

GCF(84105,84109) = 1
LCM(84105,84109) = ( 84105 × 84109) / 1
LCM(84105,84109) = 7073987445 / 1
LCM(84105,84109) = 7073987445

Least Common Multiple (LCM) of 84105 and 84109 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84105 and 84109. First we will calculate the prime factors of 84105 and 84109.

Prime Factorization of 84105

Prime Factorization of 84109

Now multiplying the highest exponent prime factors to calculate the LCM of 84105 and 84109.

LCM(84105,84109) = 3³ × 5¹ × 7¹ × 89¹ × 241¹ × 349¹
LCM(84105,84109) = 7073987445