What is the Least Common Multiple of 4561 and 4570?

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 4561 and 4570 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4561 and 4570, than apply into the LCM equation.

GCF(4561,4570) = 1
LCM(4561,4570) = ( 4561 × 4570) / 1
LCM(4561,4570) = 20843770 / 1
LCM(4561,4570) = 20843770

Least Common Multiple (LCM) of 4561 and 4570 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4561 and 4570. First we will calculate the prime factors of 4561 and 4570.

Prime Factorization of 4561

Prime Factorization of 4570

Now multiplying the highest exponent prime factors to calculate the LCM of 4561 and 4570.

LCM(4561,4570) = 4561¹ × 2¹ × 5¹ × 457¹
LCM(4561,4570) = 20843770