What is the Least Common Multiple of 21091 and 21107?

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 21091 and 21107 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21091 and 21107, than apply into the LCM equation.

GCF(21091,21107) = 1
LCM(21091,21107) = ( 21091 × 21107) / 1
LCM(21091,21107) = 445167737 / 1
LCM(21091,21107) = 445167737

Least Common Multiple (LCM) of 21091 and 21107 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21091 and 21107. First we will calculate the prime factors of 21091 and 21107.

Prime Factorization of 21091

Prime Factorization of 21107

Now multiplying the highest exponent prime factors to calculate the LCM of 21091 and 21107.

LCM(21091,21107) = 7¹ × 23¹ × 131¹ × 21107¹
LCM(21091,21107) = 445167737