seodata.dev

keyword

hardest equation in the world

Monthly search volume and cost-per-click data for "hardest equation in the world" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=hardest+equation+in+the+world&country=us" +--------------+------------------+ | volume | 880 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-21 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
hardest math problem 22,200 $7.68 14/20
hardest math equation 8,100 $3.02 20/20
hard math equations 8,100 $3.02 13/20
hardest math problem in the world 6,600 $0 15/20
hardest math question 6,600 $9.62 12/20
hardest algebra question 3,600 $9.46 12/20
hardest math equation in the world 1,000 $0 15/20
hardest equation in math 70 $0 20/20
hardest equation in maths 70 $0 13/20
the hardest math equation ever 40 $0 15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=hardest+equation+in+the+world&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt