168 are.
There are 168 prime numbers less than 1,000.
13 prime numbers
There are 25 prime numbers less than 100
There are 46 prime numbers less than 200.
solution: we know that there are 25 prime numbers are between 1-100 and 168 prime numbers less than 1000. 100 x 100=10000(5 digits) 999 x 999=998001(6 digits) 1000 x 1000=1000000(7 digits) so our answer should be same as the number of prime numbers between 100 to 999. hence, 168-25=143. 143 prime numbers will be there less than 1000 whose square has 5 or 6 digits.
One of them.
There are 168 prime numbers less than 1,000.
The prime numbers (factors) of 1000 are: 2 and 5
168 prime numbers under 1000.
13 prime numbers
There are 168 prime numbers between 1 & 1000.
There are 25 prime numbers less than 100
There are 46 prime numbers less than 200.
solution: we know that there are 25 prime numbers are between 1-100 and 168 prime numbers less than 1000. 100 x 100=10000(5 digits) 999 x 999=998001(6 digits) 1000 x 1000=1000000(7 digits) so our answer should be same as the number of prime numbers between 100 to 999. hence, 168-25=143. 143 prime numbers will be there less than 1000 whose square has 5 or 6 digits.
There are 15 prime numbers less than 50
There are 48 prime numbers less than 220.
There are 27 prime numbers less than 102.