What is the Least Common Multiple of 15557 and 15563?

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 15557 and 15563 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15557 and 15563, than apply into the LCM equation.

GCF(15557,15563) = 1
LCM(15557,15563) = ( 15557 × 15563) / 1
LCM(15557,15563) = 242113591 / 1
LCM(15557,15563) = 242113591

Least Common Multiple (LCM) of 15557 and 15563 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15557 and 15563. First we will calculate the prime factors of 15557 and 15563.

Prime Factorization of 15557

Prime Factorization of 15563

Now multiplying the highest exponent prime factors to calculate the LCM of 15557 and 15563.

LCM(15557,15563) = 47¹ × 331¹ × 79¹ × 197¹
LCM(15557,15563) = 242113591