114514_prime

114514_prime.ipynb

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   "source": [
    "import math\n",
    "NUMBER = 100000000\n",
    "\n",
    "def get_prime_list(limit):\n",
    "    limit_sqrt = int(math.ceil(math.sqrt(limit)))\n",
    "    prime_bool_list = [False] * 2 + [True] * (limit - 2)\n",
    "    for prime_cand in range(2,limit_sqrt):\n",
    "        if prime_bool_list[prime_cand]:\n",
    "            for composite in range(prime_cand ** 2, limit, prime_cand):\n",
    "                prime_bool_list[composite] = False\n",
    "    return [i for i, b in enumerate(prime_bool_list) if b]\n",
    "\n",
    "prime_list = get_prime_list(NUMBER)"
   ]
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     "name": "stdout",
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     "text": [
      "1145141\n",
      "1145143\n",
      "11145143\n",
      "11451403\n",
      "11451449\n",
      "11451467\n",
      "11451497\n",
      "11451499\n",
      "21145141\n",
      "31145143\n",
      "81145147\n",
      "91145149\n"
     ]
    }
   ],
   "source": [
    "for prime in [str(prime) for prime in prime_list]:\n",
    "    if \"114514\" in prime:\n",
    "        print(prime)"
   ]
  },
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