What is the Least Common Multiple of 1661 and 1671?

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 1671 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 1671, than apply into the LCM equation.

GCF(1661,1671) = 1
LCM(1661,1671) = ( 1661 × 1671) / 1
LCM(1661,1671) = 2775531 / 1
LCM(1661,1671) = 2775531

Least Common Multiple (LCM) of 1661 and 1671 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1661 and 1671. First we will calculate the prime factors of 1661 and 1671.

Prime Factorization of 1661

Prime Factorization of 1671

Now multiplying the highest exponent prime factors to calculate the LCM of 1661 and 1671.

LCM(1661,1671) = 11¹ × 151¹ × 3¹ × 557¹
LCM(1661,1671) = 2775531