What is the Least Common Multiple of 10668 and 10686?

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 10668 and 10686 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10668 and 10686, than apply into the LCM equation.

GCF(10668,10686) = 6
LCM(10668,10686) = ( 10668 × 10686) / 6
LCM(10668,10686) = 113998248 / 6
LCM(10668,10686) = 18999708

Least Common Multiple (LCM) of 10668 and 10686 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10668 and 10686. First we will calculate the prime factors of 10668 and 10686.

Prime Factorization of 10668

Prime Factorization of 10686

Now multiplying the highest exponent prime factors to calculate the LCM of 10668 and 10686.

LCM(10668,10686) = 2² × 3¹ × 7¹ × 127¹ × 13¹ × 137¹
LCM(10668,10686) = 18999708