Sum of 2 Squares in 2 Distinct Ways/Examples/145/Mistake/First Edition

Source Work

1986: David Wells: Curious and Interesting Numbers:

The Dictionary

$145$

Mistake

The $4$th number to be the sum of $2$ squares in two different ways:

$145 = 12^2 + 1^2 = 8^2 + 9^2$

It is in fact the $6$th after $50$, $65$, $85$, $125$, $130$.

Curious and Interesting Numbers, 2nd ed. has it as the $5$th such number, which is also wrong.

$\blacksquare$

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $145$