13 prime numbers
168
168 are.
There are 169.
'997' is the 168th smallest prime number.
168 prime numbers under 1000.
The prime numbers (factors) of 1000 are: 2 and 5
13 prime numbers
There are 168 prime numbers between 1 & 1000.
There are 34 prime numbers under 140.
168
168.
168
168 are.
There are 169.
There are 35 pairs of twin prime numbers totaling 69 numbers (prime number 5 appears twice in the twin pairs) between 0 and 1000.
'997' is the 168th smallest prime number.