What is the Least Common Multiple of 66780 and 66784?

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 66780 and 66784 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66780 and 66784, than apply into the LCM equation.

GCF(66780,66784) = 4
LCM(66780,66784) = ( 66780 × 66784) / 4
LCM(66780,66784) = 4459835520 / 4
LCM(66780,66784) = 1114958880

Least Common Multiple (LCM) of 66780 and 66784 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66780 and 66784. First we will calculate the prime factors of 66780 and 66784.

Prime Factorization of 66780

Prime Factorization of 66784

Now multiplying the highest exponent prime factors to calculate the LCM of 66780 and 66784.

LCM(66780,66784) = 2⁵ × 3² × 5¹ × 7¹ × 53¹ × 2087¹
LCM(66780,66784) = 1114958880