What is the Least Common Multiple of 15811 and 15821?

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 15811 and 15821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15811 and 15821, than apply into the LCM equation.

GCF(15811,15821) = 1
LCM(15811,15821) = ( 15811 × 15821) / 1
LCM(15811,15821) = 250145831 / 1
LCM(15811,15821) = 250145831

Least Common Multiple (LCM) of 15811 and 15821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15811 and 15821. First we will calculate the prime factors of 15811 and 15821.

Prime Factorization of 15811

Prime Factorization of 15821

Now multiplying the highest exponent prime factors to calculate the LCM of 15811 and 15821.

LCM(15811,15821) = 97¹ × 163¹ × 13¹ × 1217¹
LCM(15811,15821) = 250145831