mention hex numbers

diff --git a/factor/factor.6 b/factor/factor.6
index ccaf176ce27dc16786f2c12618b81ad25cc341f0..3522b1ff020705ba8e671387e128a090ae989cc7 100644 (file)
--- a/factor/factor.6
+++ b/factor/factor.6
@@ -1,4 +1,4 @@
-.\"    $NetBSD: factor.6,v 1.16 2020/10/04 14:22:52 kre Exp $
+.\"    $NetBSD: factor.6,v 1.17 2020/10/11 18:48:20 christos Exp $
 .\"
 .\" Copyright (c) 1989, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -35,7 +35,7 @@
 .\"
 .\" By Landon Curt Noll, http://www.isthe.com/chongo/index.html /\oo/\
 .\"
-.Dd October 3, 2020
+.Dd October 11, 2020
 .Dt FACTOR 6
 .Os
 .Sh NAME
@@ -73,6 +73,9 @@ arguments,
 reads numbers, one per line, from standard input, until end of file or error.
 Leading white-space and empty lines are ignored.
 Numbers may be preceded by a single +.
+Numbers that start with
+.Dv 0x
+are interpreted as hexadecimal.
 Integer less than 2 are rejected.
 Numbers are terminated by a non-digit character (such as a newline).
 After a number is read, it is factored.