11, 13, 17, 31, 37, 71, 73, 79, 97
The odd primes less than 20 are: 3 5 7 11 13 17 19
There are 8 twin primes less than 100. 3,5 : 5,7 : 11,13 : 17,19 : 29,31 : 41,43 : 59,61 : 71,73
In any large range of numbers, more so the higher and larger the range is, there will be more composites than primes. It is far more likely that a given number will be divisible by some number less than the number itself, the higher you go.
5, 7, 13, 17 and 19 can be so written.
Just 7. Any other number divisible by 7 isn't prime.
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.
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
There are 168 prime numbers less than 1,000.
The twin primes that are greater than 20 but less than 30 are (23, 25) and (29, 31). However, since 25 is not prime, the only valid twin primes in that range are (29, 31). Twin primes are pairs of prime numbers that have a difference of two.
here are all 8, 3,5 11,13 17,19 59,61 29,31 41,43 5,7 71,73
37 and 79
There are 8 twin primes less than 100. 3,5 : 5,7 : 11,13 : 17,19 : 29,31 : 41,43 : 59,61 : 71,73
The median of the 12 primes less than 40 is 15.
9.
eight (8)
google / 1000 primes