25 and 4
39
sum of 14th square number and 10th square number
The rule is: add 5, subtract 2, add 5, subtract 2, . . . Next number is 24.
14. If you have the numbers in order like so: 7,9,11,14,21 you can see that 21 is the greater number. You then subtract 21 from the smallest number, 7, and you get 14.
21
They are: 25 minus 4 = 21
They are: 25-4 = 21
25 and 4 or 121 and 100
There is no such number.
4 and 25 are.
39
21 is not the square of an integer. The closest square number is 25.
No, 21 is not a square number. A square number is the result of multiplying an integer by itself, and 21 cannot be expressed as the square of an integer.
21
It can be if the first number is x + 21 and the second is x for any number x.
112 - 102 = 21
The number is 21.