eulerbooks/notebooks/problem0008.ipynb

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   "source": [
    "# [Largest Product in a Series](https://projecteuler.net/problem=8)\n",
    "\n",
    "First, let's load the number as a tuple."
   ]
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   "source": [
    "num = tuple(int(d) for d in \"7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450\")"
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   "source": [
    "Now we'll just do a sliding window over the number to find the thirteen adjacent digits with the greatest product."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "6b760673",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(5, 5, 7, 6, 6, 8, 9, 6, 6, 4, 8, 9, 5)"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "subnums = (num[i:i+13] for i in range(0, len(num)-13))\n",
    "max(subnums, key=prod)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4148d160",
   "metadata": {},
   "source": [
    "Their product is 23514624000.\n",
    "\n",
    "#### Copyright (C) 2025 filifa\n",
    "\n",
    "This work is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International license](https://creativecommons.org/licenses/by-sa/4.0/) and the [BSD Zero Clause license](https://spdx.org/licenses/0BSD.html)."
   ]
  }
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