Answers for "how 2 is prime number in python code"

primes in python

from math import sqrt
for i in range(2, int(sqrt(num)) + 1):
    if num % i == 0:
        print("Not Prime")
        break
    print("Prime")

# Note: Use this if your num is big (ex. 10000 or bigger) for efficiency
# The result is still the same if the num is smaller

prime number in python

a=int(input('number:'))
if a % 2 ==0 and a / 2 <= 2:
    print('composite')
elif a % 3 == 0 and a/3 <= 2:
    print('composit')
elif a % 5 == 0 and a/5 <= 2 :
    print('composit')
elif a % 7 == 0 and a/7 <= 2:
    print('composit')
else:
    print('prime')
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