What is the Least Common Multiple of 18643 and 18659?

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 18643 and 18659 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18643 and 18659, than apply into the LCM equation.

GCF(18643,18659) = 1
LCM(18643,18659) = ( 18643 × 18659) / 1
LCM(18643,18659) = 347859737 / 1
LCM(18643,18659) = 347859737

Least Common Multiple (LCM) of 18643 and 18659 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18643 and 18659. First we will calculate the prime factors of 18643 and 18659.

Prime Factorization of 18643

Prime Factorization of 18659

Now multiplying the highest exponent prime factors to calculate the LCM of 18643 and 18659.

LCM(18643,18659) = 103¹ × 181¹ × 47¹ × 397¹
LCM(18643,18659) = 347859737