The composite cofactor of 5,389- was the product of 79-digit and 152-digit prime numbers:

79-digit prime factor:
9387716962151042842693323146443792205381753954656905958476063709922148736350901

152-digit prime factor:
25095816395292565141457536097615378979918378832607352651584897663184722057414188452946820822572335773915521260031258185798033982466691092819952150667121

The factors will be reported to the Cunningham project and will be recorded on Page 121.