task=: {{
  for_num. nums do.
     factor=. x:sqff num
     if. 1=factor do. echo num,&":' was not factored'
     else. echo num,&":': ',factor,&":' * ',":x:num%factor
     end.
  end.
}}

nums=: ".{{)n
        2501
        12851
        13289
        75301
        120787
        967009
        997417
        7091569
        13290059
        42854447
        223553581
        2027651281
        11111111111
        100895598169
        1002742628021
        60012462237239
        287129523414791
        9007199254740931
        11111111111111111
        314159265358979323
        384307168202281507
        419244183493398773
        658812288346769681
        922337203685477563
        1000000000000000127
        1152921505680588799
        1537228672809128917
        4611686018427387877x
}}-.LF