97 + 61 = 158
The sum is 1,060
In the interval [10,100] the lowest prime number is 11. The highest prime number is 97. 11 + 97 = 108.
It is: 3 plus 97 = 100
420
The sum of prime numbers between 90 and 100 is 97, the only prime number between 90 and 100.
269
1060
158 is the sum of the greatest and smallest prime numbers between 60 and 97.
61+97=158 The sum is 158
97 + 61 = 158
The sum is 1,060
There can't be a prime number that has a square root because the square root would be a factor of the number.
In the interval [10,100] the lowest prime number is 11. The highest prime number is 97. 11 + 97 = 108.
It is: 3 plus 97 = 100
420
106