What is the Least Common Multiple of 66878 and 66890?

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 66878 and 66890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66878 and 66890, than apply into the LCM equation.

GCF(66878,66890) = 2
LCM(66878,66890) = ( 66878 × 66890) / 2
LCM(66878,66890) = 4473469420 / 2
LCM(66878,66890) = 2236734710

Least Common Multiple (LCM) of 66878 and 66890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66878 and 66890. First we will calculate the prime factors of 66878 and 66890.

Prime Factorization of 66878

Prime Factorization of 66890

Now multiplying the highest exponent prime factors to calculate the LCM of 66878 and 66890.

LCM(66878,66890) = 2¹ × 7¹ × 17¹ × 281¹ × 5¹ × 6689¹
LCM(66878,66890) = 2236734710