What is the Least Common Multiple of 81215 and 81223?

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 81215 and 81223 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81215 and 81223, than apply into the LCM equation.

GCF(81215,81223) = 1
LCM(81215,81223) = ( 81215 × 81223) / 1
LCM(81215,81223) = 6596525945 / 1
LCM(81215,81223) = 6596525945

Least Common Multiple (LCM) of 81215 and 81223 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81215 and 81223. First we will calculate the prime factors of 81215 and 81223.

Prime Factorization of 81215

Prime Factorization of 81223

Now multiplying the highest exponent prime factors to calculate the LCM of 81215 and 81223.

LCM(81215,81223) = 5¹ × 37¹ × 439¹ × 81223¹
LCM(81215,81223) = 6596525945