# Integer as Sum of 5 Non-Zero Squares/Mistake

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## Source Work

1997: David Wells: *Curious and Interesting Numbers* (2nd ed.):

- The Dictionary
- $33$

## Mistake

*Any integer greater than $33$ can be written as the sum of $5$ non-zero squares. [ Jackson, Masat, Mitchell, MM v61 41 ]*

The reference is incorrect.

It refers to *Mathematics Magazine*, volume $61$, page $41$.

The actual article itself is on page $41$ of volume $66$, not $61$.

## Sources

- 1997: David Wells:
*Curious and Interesting Numbers*(2nd ed.) ... (previous) ... (next): $33$