There are three: 1, 5 and 25.
the mean of four numbers is 25 and three of the numbers are 17 23 and 25 what is the fourth number?
Only the number 1.
1, 3, 5, 15, 25, 75.
The sum of the first 25 prime numbers is 1,060.
No integer other than 1 does. Numbers like this are said to be co-prime.
12,18,20,24
the four smallest numbers are 4, 9, 25 and 49.
4, 9, 16 and 25 are square numbers.
The given four numbers are all rational numbers
3.141592653589793238462643
25, 50, 75, 100
4, 9 and 25.