What is the Least Common Multiple of 65780 and 65789?

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 65780 and 65789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65780 and 65789, than apply into the LCM equation.

GCF(65780,65789) = 1
LCM(65780,65789) = ( 65780 × 65789) / 1
LCM(65780,65789) = 4327600420 / 1
LCM(65780,65789) = 4327600420

Least Common Multiple (LCM) of 65780 and 65789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65780 and 65789. First we will calculate the prime factors of 65780 and 65789.

Prime Factorization of 65780

Prime Factorization of 65789

Now multiplying the highest exponent prime factors to calculate the LCM of 65780 and 65789.

LCM(65780,65789) = 2² × 5¹ × 11¹ × 13¹ × 23¹ × 65789¹
LCM(65780,65789) = 4327600420