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Primes.py

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def sievePrimes(maximum):

primes = dict.fromkeys(range(3,maximum+1,2),True)

sieveList = [2]

for num in sorted(primes):

if primes[num] == True:

sieveList.append(num)

j = num ** 2

while j < maximum:

if j in primes:

primes[j] = False

j += num

return(sieveList)

primeList = sievePrimes(10*1000)

print(primeList)