3
Rationals and Reals.
The answer also belongs to Natural numbers and Integers, but these sets are not closed with respect to division and so are not groups.
n/15
A prime number can only be divided by itself and 1. 4 can be divided by 2 26 can be divided by 2 15 can be divided by 3
The number 225/15 means 225 divided by 15. The answer is 15.
15
No, it is rational.
group 15
Phosphorous belong to group 15 of the periodic table.
Group 15
No. Nitrogen is in group 15 not in group 17.
15 is the highest number 15 can be divided by evenly.
nitrogen belongs too group 15
Arsenic belongs to group 15.
One possible answer13 is the only prime number in this group Incorrect 2 is a prime number also* * * * *How about 15 as the only number having different prime factors? I admit that is tenuous, but I cannot do better.
Group 15
0.0308
n/15
3.75