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randomness.md

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Randomness

⚠️ We strongly recommend you to know how to program in at least one programming language.

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.

Key 1

1c7bb1ae67670f7e6769b515c174414278e16c27e95b43a789099a1c7d55c717b2f0a0442a7d49503ee09552588ed9bb6eda4af738a02fb31576d78ff72b2499b347e49fef1028182f158182a0ba504902996ea161311fe62b86e6ccb02a9307d932f7fa94cde410619927677f94c571ea39c7f4105fae00415dd7d

Key 2

2710e45014ed7d2550aac9887cc18b6858b978c2409e86f80bad4b59ebcbd90ed18790fc56f53ffabc0e4a021da2e906072404a8b3c5555f64f279a21ebb60655e4d61f4a18be9ad389d8ff05b994bb4c194d8803537ac6cd9f708e0dd12d1857554e41c9cbef98f61c5751b796e5b37d338f5d9b3ec3202b37a32f

What you need to do

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).

This challenge comes from Brilliant