What is the Least Common Multiple of 18905 and 18910?

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 18905 and 18910 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18905 and 18910, than apply into the LCM equation.

GCF(18905,18910) = 5
LCM(18905,18910) = ( 18905 × 18910) / 5
LCM(18905,18910) = 357493550 / 5
LCM(18905,18910) = 71498710

Least Common Multiple (LCM) of 18905 and 18910 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18905 and 18910. First we will calculate the prime factors of 18905 and 18910.

Prime Factorization of 18905

Prime Factorization of 18910

Now multiplying the highest exponent prime factors to calculate the LCM of 18905 and 18910.

LCM(18905,18910) = 5¹ × 19¹ × 199¹ × 2¹ × 31¹ × 61¹
LCM(18905,18910) = 71498710