What is the Least Common Multiple of 20801 and 20807?

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 20801 and 20807 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20801 and 20807, than apply into the LCM equation.

GCF(20801,20807) = 1
LCM(20801,20807) = ( 20801 × 20807) / 1
LCM(20801,20807) = 432806407 / 1
LCM(20801,20807) = 432806407

Least Common Multiple (LCM) of 20801 and 20807 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20801 and 20807. First we will calculate the prime factors of 20801 and 20807.

Prime Factorization of 20801

Prime Factorization of 20807

Now multiplying the highest exponent prime factors to calculate the LCM of 20801 and 20807.

LCM(20801,20807) = 11¹ × 31¹ × 61¹ × 20807¹
LCM(20801,20807) = 432806407