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Name Pentagonal Numbers
Name the first 50 pentagonal numbers in 15 minutes!
The standard formula for pentagonal numbers is:
Pₙ=2(Tₙ-1)+Tₙ
To find Tₙ, use the formula: Tₙ=n*(n+1)/2
This makes the full formula Pₙ=2((n*(n+1)/2)-1)+(n*(n+1)/2)
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Last updated: March 21, 2025
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| First submitted | March 21, 2025 |
| Times taken | 3 |
| Average score | 46.0% | Report this quiz | Report |
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