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Explore these Python code snippets to check prime numbers and generate prime factors for any positive integer.
Check if a number is prime or not. A prime number is a natural number greater than 1 that is only divisible by 1 and itself.
Generate all prime factors of a number. Prime factors are the prime numbers that multiply together to give the original number.
value = int(input("Enter a number: "))
# define a flag variable
flag = False
if value == 0 or value == 1:
print(value, "is not a prime number")
elif value > 1:
# check for factors
for n in range(2, value):
if (value % n) == 0:
# if factor is found, set flag to True
flag = True
# break out of loop
break
# check if flag is True
if flag:
print(value, "is not a prime number")
else:
print(value, "is a prime number")
value = int(input("Enter a number: "))
def prime_factors(n):
factors = []
divisor = 2
while n > 1:
while n % divisor == 0:
factors.append(divisor)
n //= divisor
divisor += 1
return factors
print("Prime factors are:", prime_factors(value))
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