What is the Least Common Multiple of 81700 and 81719?

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 81700 and 81719 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81700 and 81719, than apply into the LCM equation.

GCF(81700,81719) = 19
LCM(81700,81719) = ( 81700 × 81719) / 19
LCM(81700,81719) = 6676442300 / 19
LCM(81700,81719) = 351391700

Least Common Multiple (LCM) of 81700 and 81719 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81700 and 81719. First we will calculate the prime factors of 81700 and 81719.

Prime Factorization of 81700

Prime Factorization of 81719

Now multiplying the highest exponent prime factors to calculate the LCM of 81700 and 81719.

LCM(81700,81719) = 2² × 5² × 19¹ × 43¹ × 11¹ × 17¹ × 23¹
LCM(81700,81719) = 351391700