How many prime numbers are there between 1 and 101?

Prime Numbers between 1 and 1,000
2 13
29 31 53
71 73 101
113 127 151
173 179 199

How many twin prime numbers are there between 1 and 100?

Answer: The twin primes between 1 and 100 are; (3, 5), (5, 7), (11, 13), (17, 19), (29, 31), (41, 43), (59, 61), (71, 73).