The number one has the unique property of multiplicative identity:
any number times 1 is the same number.
unique number: The number 1 has only one factor. (It is therefore unique.)
Yes, 1 is unique because it is considered neither prime or composite.
1/0
Every number is a unique number.
Yes it is shows only -1. It is in the 17th group.
Multiplicative identity: There exists a unique nonzero real number 1 (one) such that 1 x a = a x 1 = a.
Any number can be multiplied by itself, but one is unique in that it stays the same. 1x1 is 1
It is a Composite Number when it can be divided evenly by numbers other than 1 or itself.It is a Prime Number when it can't be divided evenly by any number (except 1 or itself).
By definition, 1 is not prime. A prime number has exactly two unique natural number divisors; itself and one. You can understand '1 and 1' to be two numbers, but they are not unique. The same reasoning brings us to the conclusion that 1 is not composite; a composite number can be divided without remainder by at least one integer other than itself and 1.
All elements each have an unique atom number (1 to about 104) which equals the number of protons in its nucleus.
Every number is unique, because if any number weren't unique, it would be exactly the same as another number, so the number that wasn't unique was just another way to write a different number.
A prime number is a positive whole number (a positive integer) that has exactly two unique positive divisors, 1 and the number itself.