What is the Least Common Multiple of 29870 and 29890?

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 29870 and 29890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 29870 and 29890, than apply into the LCM equation.

GCF(29870,29890) = 10
LCM(29870,29890) = ( 29870 × 29890) / 10
LCM(29870,29890) = 892814300 / 10
LCM(29870,29890) = 89281430

Least Common Multiple (LCM) of 29870 and 29890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 29870 and 29890. First we will calculate the prime factors of 29870 and 29890.

Prime Factorization of 29870

Prime Factorization of 29890

Now multiplying the highest exponent prime factors to calculate the LCM of 29870 and 29890.

LCM(29870,29890) = 2¹ × 5¹ × 29¹ × 103¹ × 7² × 61¹
LCM(29870,29890) = 89281430