What is the Least Common Multiple of 74542 and 74561?

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 74542 and 74561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74542 and 74561, than apply into the LCM equation.

GCF(74542,74561) = 1
LCM(74542,74561) = ( 74542 × 74561) / 1
LCM(74542,74561) = 5557926062 / 1
LCM(74542,74561) = 5557926062

Least Common Multiple (LCM) of 74542 and 74561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74542 and 74561. First we will calculate the prime factors of 74542 and 74561.

Prime Factorization of 74542

Prime Factorization of 74561

Now multiplying the highest exponent prime factors to calculate the LCM of 74542 and 74561.

LCM(74542,74561) = 2¹ × 13¹ × 47¹ × 61¹ × 74561¹
LCM(74542,74561) = 5557926062