1. The problem is to understand the number 5 as a mathematical value. 2. The number 5 is a positive integer, which means it is a whole number greater than zero. 3. It is a prime number, meaning it has no divisors other than 1 and itself. 4. In algebra, 5 can be used as a constant or coefficient in expressions and equations. 5. For example, in the equation $x + 5 = 10$, 5 is added to $x$ to equal 10. 6. Solving for $x$, subtract 5 from both sides: $$x + 5 - 5 = 10 - 5$$ 7. Simplifying gives $$x = 5$$. 8. Thus, the number 5 is both the given constant and the solution in this example.