What is the Least Common Multiple of 69408 and 69421?

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 69408 and 69421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69408 and 69421, than apply into the LCM equation.

GCF(69408,69421) = 1
LCM(69408,69421) = ( 69408 × 69421) / 1
LCM(69408,69421) = 4818372768 / 1
LCM(69408,69421) = 4818372768

Least Common Multiple (LCM) of 69408 and 69421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69408 and 69421. First we will calculate the prime factors of 69408 and 69421.

Prime Factorization of 69408

Prime Factorization of 69421

Now multiplying the highest exponent prime factors to calculate the LCM of 69408 and 69421.

LCM(69408,69421) = 2⁵ × 3² × 241¹ × 11¹ × 6311¹
LCM(69408,69421) = 4818372768