python：实现处理质数和整数的函数库(附完整源码)

"""
实现的函数如下
isPrime(number)
sieveEr(N)
getPrimeNumbers(N)
primeFactorization(number)
greatestPrimeFactor(number)
smallestPrimeFactor(number)
getPrime(n)
getPrimesBetween(pNumber1, pNumber2) 
isEven(number)
isOdd(number)
gcd(number1, number2)  // greatest common divisor
kgV(number1, number2)  // least common multiple
getDivisors(number)    // all divisors of 'number' inclusive 1, number
isPerfectNumber(number)
simplifyFraction(numerator, denominator)
factorial (n) // n!
fib (n) // calculate the n-th fibonacci term.
goldbach(number)  // Goldbach's assumption
"""


def pi