The composite cofactor of 11,287+ was the product of 64-digit, 71-digit, and 100-digit prime numbers:

64-digit prime factor:
1288007568447966007443299836505937120229847933950331902054131977

71-digit prime factor:
15161614250757079812344364260297902244477764299924276760549254462414383

100-digit prime factor:
6127639976547054959588646300967607855970099917324921890197286979990119440867580064926582569310582559

The factors will be reported to the Cunningham project and will be recorded on Page 118.