# Bit of a rush

• April 10th 2006, 04:01 PM
jzon
Bit of a rush
How does this work

d = inverse of 13 mod 12

what is d

• April 10th 2006, 04:06 PM
ThePerfectHacker
Quote:

Originally Posted by jzon
How does this work

d = inverse of 13 mod 12

what is d

You need an $x$ such as,
$13x\equiv 1\mod 12$
Which can be rewritten as,
$(13-12)x\equiv 1\mod 12$
Thus,
$x\equiv 1\mod 12$
• April 10th 2006, 04:12 PM
jzon