299999

299,999 is a positive integer that lies between 299,998 and 300,000. In decimal notation it is written as 299999, with a leading 2 followed by five 9s; it is the largest six-digit number that begins with the digit 2.

In number theory, 299,999 is composite. Its prime factorization is 7 × 17 × 2,521, with 2,521 itself being prime. This expresses 299,999 as a product of three primes. The number is odd and not divisible by 3 or 5; it is divisible by 7, yielding 42,857 as the quotient (7 × 42,857 = 299,999). The sum of its digits is 47, giving a digital root of 2, so 299,999 is not a Harshad number in base 10.

The factorization also shows that the divisors include 7 and 17, corresponding to the two smaller prime factors, along with 2521 as a larger prime factor. Its proximity to 300,000 makes it a common reference point for boundary values in numerical contexts. As a six-digit number starting with 2, it often appears in examples illustrating digit patterns or range limits in software testing and documentation.