There are 168 prime numbers less than 1,000.
eight (8)
59 and 53 are the two largest primes less than 60. 59+53 = 112
Except for 1, all of them.
The median of the 12 primes less than 40 is 15.
There 25 primes less than 100: 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97.
There is only one even prime number - 2.
There are 5,761,455 primes less than 100,000,000. The largest of which is 99,999,989.
There are 168 prime numbers less than 1,000.
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.
eight (8)
9.
There are 8 twin primes less than 100. 3,5 : 5,7 : 11,13 : 17,19 : 29,31 : 41,43 : 59,61 : 71,73
There are 25 primes smaller than 100.
The odd primes less than 20 are: 3 5 7 11 13 17 19
59 and 53 are the two largest primes less than 60. 59+53 = 112
37 and 79