How many keywords do I need for the best SEO?

[cwebbatya]

Ive heard the more the better, but I also heard people just say that so you use A LOT then you get bad seo (helping them). Research has shown me to believe 3-5 words for main page, then one good keyword for each other page. PLEASE HELP


------

[nigelzephyr]

somehow it depends on the length of your keywords. but its better to use 3-5 keywords.