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Update Prime or not #2966

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Update Prime or not #2966

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29 changes: 12 additions & 17 deletions python-programming-2/Prime or not
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Original file line number Diff line number Diff line change
@@ -1,22 +1,17 @@
# Program to check if a number is prime or not

num = 407
# Take input from the user
num = int(input("Enter a number: "))

# To take input from the user
#num = int(input("Enter a number: "))

# prime numbers are greater than 1
# Prime numbers are greater than 1
if num > 1:
# check for factors
for i in range(2,num):
if (num % i) == 0:
print(num,"is not a prime number")
print(i,"times",num//i,"is",num)
break
else:
print(num,"is a prime number")

# if input number is less than
# or equal to 1, it is not prime
# Check for factors only up to the square root of num
for i in range(2, int(num**0.5) + 1):
if (num % i) == 0:
print(num, "is not a prime number")
print(i, "times", num // i, "is", num)
break
else:
print(num, "is a prime number")
else:
print(num,"is not a prime number")
print(num, "is not a prime number")