You've stumbled onto a significant vulnerability in a commonly used cryptographic library. It turns out that the random number generator it uses frequently produces the same primes when it is generating keys.

Exploit this knowledge to factor the (hexadecimal) keys below, and enter your answer as the last six digits of the largest factor you find (in decimal).

```
Key 1:
1c7bb1ae67670f7e6769b515c174414278e16c27e95b43a789099a1c7d55c717b2f0a0442a7d49503ee09552588ed9bb6eda4af738a02fb31576d78ff72b2499b347e49fef1028182f158182a0ba504902996ea161311fe62b86e6ccb02a9307d932f7fa94cde410619927677f94c571ea39c7f4105fae00415dd7d
Key 2:
2710e45014ed7d2550aac9887cc18b6858b978c2409e86f80bad4b59ebcbd90ed18790fc56f53ffabc0e4a021da2e906072404a8b3c5555f64f279a21ebb60655e4d61f4a18be9ad389d8ff05b994bb4c194d8803537ac6cd9f708e0dd12d1857554e41c9cbef98f61c5751b796e5b37d338f5d9b3ec3202b37a32f
```

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