Show map of USA. Haywood is an unincorporated community in Harrison County, West Virginia, United States. Haywood is located on West Virginia Route 20 0.5 miles (0.80 km) northeast of Lumberport. Haywood has a post office with ZIP code 26366.
prime polynomial. (mathematics). A polynomial whose only factors are itself and constants. 1  Facebook.
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number.