What is the Least Common Multiple of 65421 and 65427?

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 65421 and 65427 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65421 and 65427, than apply into the LCM equation.

GCF(65421,65427) = 3
LCM(65421,65427) = ( 65421 × 65427) / 3
LCM(65421,65427) = 4280299767 / 3
LCM(65421,65427) = 1426766589

Least Common Multiple (LCM) of 65421 and 65427 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65421 and 65427. First we will calculate the prime factors of 65421 and 65427.

Prime Factorization of 65421

Prime Factorization of 65427

Now multiplying the highest exponent prime factors to calculate the LCM of 65421 and 65427.

LCM(65421,65427) = 3³ × 2423¹ × 113¹ × 193¹
LCM(65421,65427) = 1426766589