GP/PARI CALCULATOR Version 2.6.2 (development 15784-bb4c95f)

          amd64 running linux (x86-64/GMP-5.1.2 kernel) 64-bit version

   compiled: Dec 19 2013, gcc version 4.8.2 (Ubuntu/Linaro 4.8.2-10ubuntu1)

                            threading engine: single

                 (readline v6.2 enabled, extended help enabled)

? P1=x^16-1920*x^14+1374920*x^12-454688000*x^10+71196003800*x^8-5403591360000*x^6+196187950612000*x^4-2931156721280000*x^2+8582151072010000

x^16 - 1920*x^14 + 1374920*x^12 - 454688000*x^10 + 71196003800*x^8 - 5403591360000*x^6 + 196187950612000*x^4 - 2931156721280000*x^2 + 8582151072010000

? P2=x^16-1920*x^14+1531720*x^12-656076800*x^10+162571139800*x^8-23318736448000*x^6+1811121013972000*x^4-62296635394560000*x^2+386963495683210000

x^16 - 1920*x^14 + 1531720*x^12 - 656076800*x^10 + 162571139800*x^8 - 23318736448000*x^6 + 1811121013972000*x^4 - 62296635394560000*x^2 + 386963495683210000

? polredabs(P1)==polredabs(P2)

0

? polredbest(P1)==polredbest(P2)

1