## Numerical theory of nt. "Difficult Mathematics": Show that \$ 17 times 17 = \$ 289. Generalize this result

The second exercise in the book. Difficult mathematics By Carl E. Linderholm is the following:

Show that $$17 times 17 = 289$$. Generalize this result.

What is the meaning of this statement? Is there really a more general principle hidden in elementary computation?

I can only guess the following pattern: $$17$$ he is cousin and $$2 = 1 + 1$$, $$8 = 7 + 1$$, $$9 = 7 + 1 + 1$$.

## Service invoked too many times for a day: properties are obtained. (line 183)

I have uninstalled & # 39; managed apps & # 39;
Cache deleted
Restart my computer

It still does not work. There was a time when his crypto-finance used to work without problems with the google sheets. Now I can not make it work even for 1, even after PAYING \$\$!