11899

11899 is a natural number that follows 11898 and precedes 11900. It is odd and composite.

Its prime factorization is 11899 = 73 × 163, with both factors prime. Therefore, 11899 is a semiprime and, since the two primes are distinct, it is square-free. The positive divisors are 1, 73, 163, and 11899.

In decimal notation it is 11899. The digits sum to 28, indicating it is not divisible by 3, and it is not divisible by 2 or 5. It is not a palindrome.

Context: As an example of a semiprime, 11899 is sometimes cited in introductory discussions of factorization and cryptography, though its value is far too small for practical use in cryptography. It illustrates the basic property of numbers that have exactly two prime factors.