168 prime numbers under 1000.
3,9,27,81,243,729
There are 168 prime numbers under 1,000 . There are also 25 primes under 100, 62 primes under 300, and 95 primes under 500
Since all numbers have one as a factor, there is no number with three as its only factor.
The prime numbers (factors) of 1000 are: 2 and 5
3, 9, 27, 81, 243, 729
That's an infinite list, started by 1024
There are 168 prime numbers between 1 & 1000.
100
1. As long as there are two prime numbers in a set, the only common factor for the set will be 1.
13 prime numbers
3, 9, 27, 81, 243, 729