**Congratulations to Curtis Cooper of** GIMPS for finding the largest known prime (for now!). Are you ready? It’s a Mersenne Prime and apparently it took 39 days of computations to verify its primality. Here it is:

And here’s a nice write up on CNN. *(HT: Zach Kram, Prisca Chase)*

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Mr. Chase! The largest known prime was found again! It’s another Mersenne Prime! Yay!