Frequently Asked Python Program 2: How To Check A Number is Prime Or Not

Topic : How To Check A Number is Prime Or Not
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#PythonPrimeCheck
#PrimeNumberCheck
#PrimeOrNot
#PythonPrimeAlgorithm
#NumberTheory
#PythonCodingChallenge
#AlgorithmicThinking
#PythonMathematics
#PrimeAlgorithm
#NumberIsPrime
#PythonCoding
#PrimeNumberLogic
#PythonNumberTheory
#AlgorithmPractice
#PythonProgramming
#PrimeCheckCode
#NumberProperty
#PythonFunctions
#CodingWithPython
#PrimeNumberTest
#PythonLoops
#NumberAnalysis
#CodingCommunity
#PythonLogic
#PrimeIdentification
#NumberManipulation
#CodeSnippet
#PythonTips
#PrimeVerification
#NumberEvaluation
#CodeLearning
#PythonTricks
#PrimeSieve
#NumberDivisibility
#CodeForBeginners
#PythonSkills
#PrimeDiscovery
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#CodingJourney
#PythonExploration
#PrimeDecomposition
#NumberProperties
#CodingInPython
#PythonAlgorithm
#PrimeAnalysis
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#CodingPractice
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#NumberProblems

[@elenaianachi1705]

I really like your courses, very well explained, thanks ! 👍👍👍

[@sdetpavan]

Glad to hear that!

[@hemapriyagunasekaran6255]

After 4 years I'm watching your videos... It helps me a lot sir...

[@sdetpavan]

Thanks

[@joeljosh3877]

sir,you tell us the the program in a systematical way that is one of the main keys for understanding any program.

[@patilabhijeetj]

Good one. Just one point, if we have to check input number from user then we have to typecast input to an integer. For example, num1 is the variable storing user's input then typecast it as int(num1) and then work on this. RIght?

[@daniellejdevlin8882]

Can you explain why number=2 shows up as prime when 2÷2=0, which would force the code to break out of loop? I know 2 is prime

[@shivaprasad-gn6dc]

Range is taken from 1 so at first 2÷1 reminder is zero then 2÷2 reminder is zero again so count =2 hence prime and the loop terminates here .

[@kasireddylaxmi5609]

Sir your explanation is awesome i am waiting for videos on react js sir

[@deepakSharma-cf5qo]

Below code is giving error in pycharm and online compiler also. Can anyone help what is the issue. num = int(input("enter the number")) count = 0 if num>1: for i in range(1,num+1): if num % i == 0: count = count+1 if count == 2: print("prime") else: print("not prime")

[@abdullahgazi278]

can anyone tell this program is right or wrong fr prime number: number = int(input("Enter number: ")) if number

[@nvnkb]

wrong because what if the number is divisible by 5? for example, 25

[@joeljosh3877]

sir can we write (n%2!=0) as condition for checking prime number

[@ushakiran8285]

no

[@kmahendra6691]

it's a good logic sir thank you

[@sdetpavan]

Welcome

[@cagnkoroglu7739]

#%%prime number while True: num = int(input("your number is ")) for x in range(2,num+1): if num % x == 0: print("not a prime num") break if num % x > 0: print("prime num") break

[@kvelez]

num = int(input("Num: ")) is_prime = True if num > 1: for i in range(2, num): if num%i == 0: is_prime = False break print(f"Prime number: {is_prime}")

[@anushribora8887]

Well explained 👍🏻

[@sdetpavan]

Thank you

[@adityajadhav3507]

Thank you sir

[@sdetpavan]

Welcome

[@turyachaitanya]

good👌

[@sdetpavan]

Thanks

[@thanushshetty4531]

For 0 this won't work na? We need to use else for n

[@siddumurthy1734]

Well explained.

[@sdetpavan]

Thanks

[@chellaboinanarsimha8223]

How to find prime numbers between two numbers

[@kkkg123]

Jst using range loop

[@siddumurthy1734]

Thanks Pavan Ji

[@sdetpavan]

Welcome

[@kumarnaikb7901]

Great👍👏

[@sdetpavan]

Thanks

[@ajaychandra2001]

a,b = b,a

[@kommalapatimanjula8268]

Vedios is not clear bro

[@EBKCS_UTTAMSONI]

a=int(input()) if(a/1==a and a/a==1 and a%2!=0 and a%3!=0 and a%5!=0 and a%7!=0): print(a,":no is prime") else: print("no is not prime")

[@deshivillage6048]

Interviewer be like hey Prabhu😮

[@swethavenkatesh9390]

But number 9 is a not a prime number but it's show as prime in this program

[@turyachaitanya]

num = int(input("Enter a number ")) count = 0 if num>1: for i in range(1,num+1): if (num%i) == 0: count =count+1 if count == 2: print(num,"is a prime number") else: print(num,"is not a prime number")

[@DhrumilSoni812]

# Check whether Number is Prime Or Not num = input("Enter the Number: ") # prime Number- # Number > 1 # Only 2 factors - 1 and Number itself. # 19 = 1, 19 # 28 = 1, 2, 4, 7, 14, 28 count = 0 if int(num) > 1: for i in range(1, int(num)+1): if int(num) % i == 0: count += 1 if count == 2: print("Number is Prime") else: print("Number is not Prime") else: print("Number is not Prime number") # This will handle input 1 as well.

[@chellaboinanarsimha8223]

You can mention like Num= int(input("enter a number "))

[@MahendraSurya-p1u]

i want your guidance for getting job can i get your number sir...