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What did Crusty know about the math problem?
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What did Crusty know about the math problem?

What did Crusty know about the math problem?

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This Week's Puzzler
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CRUSTY'S PERFECT SQUARE

 
RAY: This was sent in by William Dubuvitz.
One of the mechanics in the garage has a son in high school who is very good in computer programming. He stopped by the garage one day after school and told his dad about his latest assignment.
He’s supposed to write a computer program to determine whether a large number is a perfect square. (A perfect square is a whole number or an integer that is arrived at by squaring another whole number. For example, 900 is a perfect square of 30; 196 is a perfect square of 14. 625 is the perfect square of 25. So there are no fractions, no decimals, no nothing. Just whole numbers allowed.)
Each student is assigned a different number. This kid's number is 334,912,740,121,562.
Out of the inky shadows, who appears but Crusty! And he says, "Oh, your teacher gave you an easy number."
"She did?" said the kid.
"Oh yeah. I can give you the answer right now."
What did Crusty know?

 



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What did Crusty know about the math problem?

 

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This is a taxing question first thing in the morning. If my memory is correct, no number can be squared that will result in the answer ending with the number 2.

334,912,740,121,562

1x1= 1
2x2 = 4
3x3 = 9



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