[Gordon]

While running a fresh set of curves through gmp-ecm, I set the haswell to running ecm (advanced, ecm) on an exponent in the 250k range, I meant to type in 255251, instead I mis-typed 255521.

Found 3 factors

127

1615926072477214583301236874001 - 100.35 bits

113251268558694037995013049810661462891857455223 - 156.30 bits