NT/XP Password Hashes - LM or NTLM

Factual Questions
1

Is there a way to tell by looking whether or not a password hash in the SAM file is LM or NTLM?

I found some info here:
http://www.innovation.ch/java/ntlm.html

and at the bottom of the page I saw this:

lm_hpw (LanManager hashed password):
91 90 16 f6 4e c7 b0 0b a2 35 02 8c a5 0c 7a 03 00 00 00 00 00
nt_hpw (NT hashed password):
8c 1b 59 e3 2e 66 6d ad f1 75 74 5f ad 62 c1 33 00 00 00 00 00

looks like they are the same in length but I was wondering if there were any differences perhaps seen by the trained eye.

2

According to Microsoft, a password will be stored as an NTLM hash iff the password is fewer than 15 characters in length. Is that what you were asking?

3

That link gave me a better understanding…thanks!