Most important factors are Quality Content

[charlesprabhu]

The most important factors are Quality Content and User Experience

Your content should be unique and the minimum length should be 1000 words.
Google gives priority to the mobile responsive website, which means your website should be mobile responsive.
Use keywords in Alt Tags, H1 and H2 Tags

[smartscraper]

Undoubtedly, content is important and plays important role in SEO.
But Before the content part, make sure the website is SEO friendly to get better results.

[tbsind]

Keywords as well as grammar also play a good role in content writing for the website.