The prime numbers between 20 and 40 are 23, 29, 31 and 37 that is 4 out of 20 or 1 to 5
The products of the primes are the composites.
4 to 15 exclusive 4 to 17 inclusive
Of the 1,000 numbers from 1 to 1,000, 168 are primes and one (the number 1) is neither composite nor prime. Subtracting the 169 numbers that are not composites leaves 831 composuite numbers from 1 to 1,000 (1,000 - 169 = 831).
There are over 45,000 such numbers and, since there is no systematic rule for primes or composites, this site is not suitable for listing them all. You may wish to follow the related link for all the primes in the range and remove these from 2-50000.
There are infinitely many primes. There are 24 prime numbers between 1 and 100
Number of primes = 4 Number of composites = 5 Ratio of primes to composites = 4 : 5
It is 2:7
The prime numbers between 20 and 40 are 23, 29, 31 and 37 that is 4 out of 20 or 1 to 5
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.
4 to 15 exclusive 4 to 17 inclusive
4 to 15 exclusive 4 to 17 inclusive
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.
The products of the primes are the composites.
4 to 15 exclusive 4 to 17 inclusive
There are infinitely many numbers, and these comprise infinitely many primes and composites. It is not possible to list them all.
Of the 1499 numbers less than 1500, number 1 is neither prime nor composite, 239 are primes, and the remaining 1259 are composites.
No, twin primes are pairs of prime numbers that have only one number between them which is a composite number. For example, (3, 5) and (11, 13) are twin prime pairs with the composite number 4 and 12 respectively between them.