18. All numbers' highest factor is the number itself.
Every number is the largest factor of itself.
15 is both a multiple and a factor of itself.
Two number are said to be "relatively prime" if they have no common factors - of course, other than the trivial factor 1. Even a prime number is not "relatively prime" to itself, since the prime number itself is the common factor. For example, the common factor of 7 and 7 is 7. Thus, the only situation I can think of where a number has no common factor with itself is that the number is 1.
The number itself.
Every nonzero number is a factor of itself.
The greatest factor of 99 is itself, which is 99. The greatest factor of any integer is the integer itself.
The greatest factor of any positive number is the number itself.
6d is the greatest common factor since it is a factor of itself and of 18d. Remember any number or term is a factor of itself because any number can go into itself once.
1 has one factor, itself.
The greatest factor of a number is the number itself.
The number divided by its smallest prime factor.
It is a square of that factor. E.g. 5 is a distinct factor of 25. If you multiply that distinct factor by itself (5*5) you get 25. A square comes from the x^2 notation and is any number which has a factor which is multiplied by itself.
18. All numbers' highest factor is the number itself.
1 has one factor: itself.11 has two factors: one and itself.
Itself and the lowest factor is 1
The number itself