Is it required to keep <p><h1> together or any ONE is fine

Question

i mean to write a paragragh you can use <p> but <h6> can also be used and both are almost identical just the font size changes ......my doubt is to write <h3> or any heading is <p> necessary ??

Answer 1

Use them appropriately, they looks identical but their semantic is totally different and trust me, it makes the difference once you start to worry about SEO.

Answer 2

Use h1 or any heading tag first, after this use p tag
<h1>
</h1>
<p>
</p>

Answer 3

You dont need <p> for headings.
The 'h' tags are enough for headings.