What is the Least Common Multiple of 84390 and 84399?

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 84390 and 84399 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84390 and 84399, than apply into the LCM equation.

GCF(84390,84399) = 3
LCM(84390,84399) = ( 84390 × 84399) / 3
LCM(84390,84399) = 7122431610 / 3
LCM(84390,84399) = 2374143870

Least Common Multiple (LCM) of 84390 and 84399 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84390 and 84399. First we will calculate the prime factors of 84390 and 84399.

Prime Factorization of 84390

Prime Factorization of 84399

Now multiplying the highest exponent prime factors to calculate the LCM of 84390 and 84399.

LCM(84390,84399) = 2¹ × 3¹ × 5¹ × 29¹ × 97¹ × 7¹ × 4019¹
LCM(84390,84399) = 2374143870