Used pfgw: 2^280852+97681 is 3-PRP! (3580.430000 seconds)
PrimeForm v0.4:
97681+2^280852 is probable prime! (a = 28559) (digits:84545)
97681+2^280852 is probable prime! (verification : a = 28571) (digits:84545)

To be completed...