Yes, 1 is unique because it is considered neither prime or composite.
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.
A prime number is a positive whole number (a positive integer) that has exactly two unique positive divisors, 1 and the number itself.
Every whole number is unique: no two whole numbers are the same!
The fundamental theorem of arithmetic or the unique factorisation theorem would fail.
The prime numbers smaller than 100 are:2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 ......and they go on for ever. So far nobody has found a pattern to predict themand they can't decide if 1 is prime or not!1 is prime.. The only number you can multiply is by is 1 and only 1.. 1 is definitely a prime number.^^Whoever said this is wrong. 1 is neither prime nor composite. If it were, technological security systems across the world would never work.By definition, a prime number is a number which has exactly two unique factors. 1 has only 1 unique factor: 1, and is thus not prime.
unique number: The number 1 has only one factor. (It is therefore unique.)
The number one has the unique property of multiplicative identity: any number times 1 is the same number.
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
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.
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).
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.