It is 210.
It is 192282.
The sum of the 25 primes less than 100 is even (it is 1060).The first prime number is 2. Every other prime number is odd.So, of the 25 primes less than 100, one is even and 24 are odd.Any two odd numbers sum to an even number. Therefore, an even number of odd numbers has an even sum. So the sum of 24 odd numbers is even.Therefore, the sum of the 25 primes less than 100 is even.
The sum of the composite numbers that are less than 8 is: 4+6 = 10
The sum of all the prime numbers less than 201 is 4,227.
The sum of all prime numbers less than 30 is 129.
The sum of the two largest prime numbers less than 71 is 128.
The sum of the three greatest prime numbers that are less than 39 is 97.
Their sum is 1200.
The sum of the prime numbers less than 10 is2 + 3 + 5 + 7 = 17