What is the Least Common Multiple of 16990 and 16999?

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 16990 and 16999 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16990 and 16999, than apply into the LCM equation.

GCF(16990,16999) = 1
LCM(16990,16999) = ( 16990 × 16999) / 1
LCM(16990,16999) = 288813010 / 1
LCM(16990,16999) = 288813010

Least Common Multiple (LCM) of 16990 and 16999 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16990 and 16999. First we will calculate the prime factors of 16990 and 16999.

Prime Factorization of 16990

Prime Factorization of 16999

Now multiplying the highest exponent prime factors to calculate the LCM of 16990 and 16999.

LCM(16990,16999) = 2¹ × 5¹ × 1699¹ × 89¹ × 191¹
LCM(16990,16999) = 288813010