What is the Least Common Multiple of 7543 and 7561?

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 7543 and 7561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7543 and 7561, than apply into the LCM equation.

GCF(7543,7561) = 1
LCM(7543,7561) = ( 7543 × 7561) / 1
LCM(7543,7561) = 57032623 / 1
LCM(7543,7561) = 57032623

Least Common Multiple (LCM) of 7543 and 7561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7543 and 7561. First we will calculate the prime factors of 7543 and 7561.

Prime Factorization of 7543

Prime Factorization of 7561

Now multiplying the highest exponent prime factors to calculate the LCM of 7543 and 7561.

LCM(7543,7561) = 19¹ × 397¹ × 7561¹
LCM(7543,7561) = 57032623