An equation or, possibly, an identity.
Any number divided by itself equals 1 as for example 5/5 = 1
It wil be a negative answer as for example -1+(-1) = -2
For example, 1 x 540.
For example, -1 times 11.
Any positive number greater than zero raised to the power of 0 always equals 1 as for example 666 to the power of 0 equals 1
Yes, 1 can divide. Anything divided by 1 equals that number which was first divided. For example, x/1 = x. x divided by 1 equals x
1 is the multiplicative identity.
This answer applies to programming languages in general. The equals sign is used for assignment. For example, the code "$variable = 1" assigns the value of 1 to the variable $variable. If you want to test whether values are the same (equality) the double equals sign is used. For example, when you want to verify that $variable has been assigned the value of 1 you would use: $variable == 1
Any time that a negative number is being multipled by another negative number, it equals a positive number. In this case, -1 multiplied by -1 equals 1. Another example of this is -5 multiplied by -5 which equals 25. Though if you multiply a negative by a positve, it equals a negative. If you were to multiply a positive by a positve, it will always equal a positve.
x ALWAYS = 1
For example, 1 x 450.
Only one and eleven. Eleven is a prime number. Prime numbers are divisible by one and themselves only.