Click image to enlarge, maybe.
This is from the occidental mystic mathematician RamanuJohn, and he got it from the University of Massachusetts Mathematics Department Alumni Newsletter.
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One of the following numbers is a perfect square and the others aren't. Using only paper and pencil (no calculators, computers, etc.), determine which is the perfect square. Justify your answer.
a) 176854927
b) 262083721
c) 296837263
d) 322214835
e) 761823600
