9.
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 are 168 prime numbers less than 1,000.
eight (8)
There are 8 twin primes less than 100. 3,5 : 5,7 : 11,13 : 17,19 : 29,31 : 41,43 : 59,61 : 71,73
472.
There are 25 primes smaller than 100.
Composite
The odd primes less than 20 are: 3 5 7 11 13 17 19
There are an infinite number of primes greater than any number given.
The only even prime number is... 2 !
59 and 53 are the two largest primes less than 60. 59+53 = 112
< > = Greater than , less than and equal too