Python - Print All Prime Numbers In Any Interval

l = int(input("low bound: "))
u = int(input("upper bound: "))

for num in range(l,u+1):
if num > 1:
for i in range(2,num):
if num % i == 0:
break
else:
print(num)

How to count them ?

Just curious: why didn't you create a function?

Thank you sir love for Bangladesh

thank you!

sir can you write it without using a break command

wonderful, i really appreciate that. Yet i am wondering why the else can go outside the for loop but not on the same vertical line with 'if'. What does it mean sir, hope you can answer me~~

Thank you

Thank you 😊 thank you sooo much 🙏🙏🙏

Thank you for this!!

190th like

If we know 2 isn't a factor of n, wouldn't it be better to avoid running this code over rest of the even numbers in our integer range (since even numbers are all factors of 2)?

In pydroid it doesnt work but in pycharm it works i must have a stupid IDE

How about while loop?

How can we modify this so that given a positive integer x, it computes the fraction
f(x) of prime numbers less than or equal to x, i.e., f(x) = y/x, where y is the the number of prime
numbers less than or equal to x

How to get all that output in single line

how to write this code for, prime numbers between 100 & 200, and output as 5 numbers in 1 line and then next line, a little tricky question...

When i was doing this in the range between 1 to 10.....2 is not including in the list when the output was displayed......I dont know why it was not including....pls give me the solution sir

For some reason, I copied this exactly into IDLE and it is only printing "2". Nothing else

If finding prime number between 2 and 200, Does this function work? Because 2 divided by 2 will break and will not print 2, but 2 is a prime number.

Thanks

Great tutorial. Just a suggestion below
Instead of "for i in range(2,num)" ,
"for i in range(2,(num//2 + 1))" would have better time complexity isn't it? Because for any i which is greater than num/2 , num won't divide by i

As a beginner in coding that else statement outside for loop felt genius

short and crisp!

Very helpful video for me.Thanks sir

Thanks a lot!