3,5
5,7
11,13
17,19
29,31
41,43
59,61
71,73
Eight pairs.
There are 25 prime numbers between 1 and 100.
There are ten prime numbers between 51-100.
Mirror primes are pairs of prime numbers whose digits are reversed. (13,31)(17,71)(37,73)(79,97)
There are 25 prime numbers less than 100
6
7
Eight pairs.
One pair.
The 15 twin prime numbers between 1 and 100 are in 8 pairs. The twin prime pairs are (3, 5), (5, 7), (11, 13), (17, 19), (29, 31), (41, 43), (59, 61), and (71, 73).
Co-prime numbers, also known as relatively prime numbers, are pairs of numbers that have no common factors other than 1. For example, the pairs (8, 15) and (9, 28) are co-prime because their greatest common divisor (GCD) is 1. In the range from 1 to 200, many co-prime pairs exist, such as (14, 25), (20, 33), and (99, 100). Essentially, any two prime numbers are co-prime, as well as any two numbers that do not share any prime factors.
There are 25 prime numbers less than 100
There are 25 prime numbers between 1 and 100.
100
The answer depends on how many prime numbers are whose!
As a product of its prime factors: 2*2*5*5 = 100
There are 25 prime numbers before 100.