[R.D. Silverman]

Originally Posted by patrickkonsor

As I am bored during the pandemic, I decided to revisit my quadratic sieve implementation from 10 years ago, and successfully factored RSA-140. This is a semi-prime with 140 decimal digits or 463 binary bits.

<snip>

The factorization took a bit under 6 days across 60 cores that were used sporadically, for a total of 5,959 core hours. All systems were Skylake based Core or Xeon.

Impressive.