What is the Least Common Multiple of 1661 and 1667?

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 1661 and 1667 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1661 and 1667, than apply into the LCM equation.

GCF(1661,1667) = 1
LCM(1661,1667) = ( 1661 × 1667) / 1
LCM(1661,1667) = 2768887 / 1
LCM(1661,1667) = 2768887

Least Common Multiple (LCM) of 1661 and 1667 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1661 and 1667. First we will calculate the prime factors of 1661 and 1667.

Prime Factorization of 1661

Prime Factorization of 1667

Now multiplying the highest exponent prime factors to calculate the LCM of 1661 and 1667.

LCM(1661,1667) = 11¹ × 151¹ × 1667¹
LCM(1661,1667) = 2768887