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
25 primes.
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.
All the twin primes between 50 and 100 are (53, 59) (61, 67) (71, 73) (79, 83) (89, 91)
101
primes are 1,2,3,5,7,11,13,17,19,23,29,31,41,43,47,53,59,61,67,71,73,79,83,89,91. all others are composites.
Here are all the twin primes between 100 and 200.(101, 103), (107, 109), (137, 139), (149, 151), (179, 181), (191, 193), and (197, 199).Twin primes are prime numbers that differ from each other by 2.
Twin primes between 50 and 100 are {59, 61} and {71, 73}.
The only consecutive primes between 1 and 100 are 2 and 3.
Answer: 1, and that is 2?Answer: The only even prime number - nont only between 1 and 100, but among all the prmes - is 2. All higher even numbers are divisible by 2, and therefore not primes.
2x2x5x5
100
25 of them.