What is the Least Common Multiple of 81998 and 82008?

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 81998 and 82008 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81998 and 82008, than apply into the LCM equation.

GCF(81998,82008) = 2
LCM(81998,82008) = ( 81998 × 82008) / 2
LCM(81998,82008) = 6724491984 / 2
LCM(81998,82008) = 3362245992

Least Common Multiple (LCM) of 81998 and 82008 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81998 and 82008. First we will calculate the prime factors of 81998 and 82008.

Prime Factorization of 81998

Prime Factorization of 82008

Now multiplying the highest exponent prime factors to calculate the LCM of 81998 and 82008.

LCM(81998,82008) = 2³ × 7¹ × 5857¹ × 3² × 17¹ × 67¹
LCM(81998,82008) = 3362245992