6751

6751 is an integer that follows 6750 and precedes 6752. In number theory, it is notable for being a semiprime, meaning it is the product of exactly two prime numbers. Its prime factorization is 43 × 157, so the positive divisors of 6751 are 1, 43, 157, and 6751.

In various representations, 6751 is written in binary as 1101001011111 and in hexadecimal as 0x1A5F. It is an odd number and is not divisible by 3 or 5 (the sum of digits is 19, which is not a multiple of 3). It is congruent to 15 modulo 16 (i.e., it leaves a remainder of 15 when divided by 16).

As a semiprime, 6751 belongs to the class of integers that are the product of two primes. The factors 43 and 157 are both prime, with 157 also being a prime number on its own. Because it has exactly four positive divisors, 6751 has a simple multiplicative structure that is of interest in elementary and computational number theory.

Overall, 6751 serves as a concrete example of a composite number with two prime factors, illustrating common properties of semiprimes, such as having a small divisor set and distinct binary and hexadecimal representations. See also semiprime and prime factorization for related topics.