31, 37, 41, 43, 47
Pick three.
31 37 47
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
Each of the 25 prime numbers from 1 to 100 has exactly two factors, 1 and the number itself. The other 75 numbers from 1 to 100 are not prime numbers because none of them have exactly two factors.
4 and 9
The list of prime numbers is infinite. There are two factors for each.
No numbers between 1 and 100 have exactly eleven factors. 60, 72, 84, 90 and 96 each have twelve factors.
Prime numbers
31 37 47
31, 37, 41, 43, 47Pick three.
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
Each of the 25 prime numbers from 1 to 100 has exactly two factors, 1 and the number itself. The other 75 numbers from 1 to 100 are not prime numbers because none of them have exactly two factors.
4 and 9
60, 72, 84, 90 and 96 each have twelve factors.
60, 72, 84, 90, and 96 each have 12 factors.
6 (1,2,3,6) 10 (1,2,5,10) and 15 (1,3,5,15).
There are infinitely many fractions between any two numbers - no matter how close they are to each other. There is no number which is "exactly the fraction".
This is basically just a fancy way of asking you "What are the prime numbers between 30 and 50?" Prime numbers are numbers that have only two factors (numbers that divide evenly into the original number): one and themselves. Prime Examples: 2, 3, and 5 -- factors are 1 and 2, 1 and 3, and 1 and 5 Not Prime: 4 and 6 -- factors are 1, 2, and 4, and 1, 2, 3, and 6 So, the prime numbers between 30 and 50 would be: 31, 37, 41, 43, and 47