What is the Least Common Multiple of 66689 and 66693?

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 66689 and 66693 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66689 and 66693, than apply into the LCM equation.

GCF(66689,66693) = 1
LCM(66689,66693) = ( 66689 × 66693) / 1
LCM(66689,66693) = 4447689477 / 1
LCM(66689,66693) = 4447689477

Least Common Multiple (LCM) of 66689 and 66693 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66689 and 66693. First we will calculate the prime factors of 66689 and 66693.

Prime Factorization of 66689

Prime Factorization of 66693

Now multiplying the highest exponent prime factors to calculate the LCM of 66689 and 66693.

LCM(66689,66693) = 7² × 1361¹ × 3¹ × 11¹ × 43¹ × 47¹
LCM(66689,66693) = 4447689477