6931

6931 is a natural number that comes between 6930 and 6932. In number theory, it is a semiprime, meaning it is the product of exactly two prime numbers. Its prime factorization is 29 × 239, with 29 and 239 both prime.

Because it is a product of two distinct primes, 6931 has four positive divisors: 1, 29, 239, and 6931. It is an odd number, and since 6931 ≡ 3 (mod 4), it cannot be expressed as a sum of two squares.

Representations in other bases include binary 1101100010011, hexadecimal 0x1B13, and octal 15423. The decimal digits sum to 19, indicating that the number is not divisible by 3. It is not a perfect power or a triangular number.

Beyond its single factorization, 6931 serves as a simple example in discussions of semiprimes and integer factorization. Its small size makes it easy to verify by hand and to illustrate the properties of products of two primes.