What is the Least Common Multiple of 81502 and 81518?

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 81502 and 81518 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81502 and 81518, than apply into the LCM equation.

GCF(81502,81518) = 2
LCM(81502,81518) = ( 81502 × 81518) / 2
LCM(81502,81518) = 6643880036 / 2
LCM(81502,81518) = 3321940018

Least Common Multiple (LCM) of 81502 and 81518 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81502 and 81518. First we will calculate the prime factors of 81502 and 81518.

Prime Factorization of 81502

Prime Factorization of 81518

Now multiplying the highest exponent prime factors to calculate the LCM of 81502 and 81518.

LCM(81502,81518) = 2¹ × 40751¹ × 40759¹
LCM(81502,81518) = 3321940018