When i Sign up for Facebook we just get our own profile link just like this format
https://www.facebook.com/profile.php?id=100000664009578.When you choose a suitable username for you this number like this 100000664009578 go vanish.Now how you will you get that number that is called your Facebook ID?
This is very easy to find that number.Log in to facebook and go to http://graph.facebook.com/yourusername. Here you will replace your Facebook username.As my Facebook username is technoisland.subhatheblogger so for my fcebook ID i will gohttps://www.facebook.com/technoisland.subhatheblogger. And see magic.Now you not only find your ID but also find others Facebook ID
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