What is the Least Common Multiple of 1591 and 1601?

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 1591 and 1601 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1591 and 1601, than apply into the LCM equation.

GCF(1591,1601) = 1
LCM(1591,1601) = ( 1591 × 1601) / 1
LCM(1591,1601) = 2547191 / 1
LCM(1591,1601) = 2547191

Least Common Multiple (LCM) of 1591 and 1601 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1591 and 1601. First we will calculate the prime factors of 1591 and 1601.

Prime Factorization of 1591

Prime Factorization of 1601

Now multiplying the highest exponent prime factors to calculate the LCM of 1591 and 1601.

LCM(1591,1601) = 37¹ × 43¹ × 1601¹
LCM(1591,1601) = 2547191