Squares which are 4 Less than Cubes/Historical Note
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Historical Note on Squares which are 4 Less than Cubes
Pierre de Fermat correctly conjectured that there are only two square numbers which are $4$ less than a cube.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $121$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $121$