generate prime numbers python code example
Example 1: python calculate prime numbers until numer
until = 20
[n for n in range(2, until) if all(n % m != 0 for m in range(2, n-1))]
Example 2: generate random prime number python
import sympy
primeNumber = sympy.randprime(min, max)
Example 3: the list of prime number in a given range python
n=int(input("Enter the number till you want to check: "))
primes = []
for i in range (2, n+1):
for j in range(2, i):
if i%j == 0:
break
else:
primes.append(i)
print(primes)
Example 4: list of prime numbers in python
n = 20
primes = []
for i in range(2, n + 1):
for j in range(2, int(i ** 0.5) + 1):
if i%j == 0:
break
else:
primes.append(i)
print(primes)
Example 5: python generator prime numbers
def primeCheck(n):
if n == 1 or n == 0 or (n % 2 == 0 and n > 2):
return False
else:
for o in range(3, int(n ** (1 / 2)) + 1, 2):
if n % o == 0:
return False
return True
for a in range(2**15):
if primeCheck(a):
prime_numbers.append(a)
Example 6: prime numbers upto n in python
lower = int(input("Enter lower range: "))
upper = int(input("Enter upper range: "))
for num in range(lower,upper + 1):
if num > 1:
for i in range(2,num):
if (num % i) == 0:
break
else:
print(num)