seodata.dev

keyword

hardest maths problems in the world

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

$ curl "https://app.seodata.dev/v1/keyword?q=hardest+maths+problems+in+the+world&country=us" +--------------+------------------+ | volume | 6,600 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-16 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
hardest math problem 22,200 $7.68 20/20
hard math problem 22,200 $10.16 15/20
hardest math problem in the world 6,600 $0 20/20
hardest math question 6,600 $9.62 17/20
the hardest math problem in the world 6,600 $0 14/20
world's hardest math problem 6,600 $0 14/20
hardest math 4,400 $3.79 17/20
most difficult problem in mathematics 480 $0 14/20
toughest problems in maths 210 $0 14/20
hardest equation in math 70 $0 14/20

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+maths+problems+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