What is the Least Common Multiple of 4770 and 4788?

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 4770 and 4788 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4770 and 4788, than apply into the LCM equation.

GCF(4770,4788) = 18
LCM(4770,4788) = ( 4770 × 4788) / 18
LCM(4770,4788) = 22838760 / 18
LCM(4770,4788) = 1268820

Least Common Multiple (LCM) of 4770 and 4788 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4770 and 4788. First we will calculate the prime factors of 4770 and 4788.

Prime Factorization of 4770

Prime Factorization of 4788

Now multiplying the highest exponent prime factors to calculate the LCM of 4770 and 4788.

LCM(4770,4788) = 2² × 3² × 5¹ × 53¹ × 7¹ × 19¹
LCM(4770,4788) = 1268820