What is the Least Common Multiple of 29890 and 29905?

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 29890 and 29905 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 29890 and 29905, than apply into the LCM equation.

GCF(29890,29905) = 5
LCM(29890,29905) = ( 29890 × 29905) / 5
LCM(29890,29905) = 893860450 / 5
LCM(29890,29905) = 178772090

Least Common Multiple (LCM) of 29890 and 29905 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 29890 and 29905. First we will calculate the prime factors of 29890 and 29905.

Prime Factorization of 29890

Prime Factorization of 29905

Now multiplying the highest exponent prime factors to calculate the LCM of 29890 and 29905.

LCM(29890,29905) = 2¹ × 5¹ × 7² × 61¹ × 5981¹
LCM(29890,29905) = 178772090