Posted by **Maths lover Please Help...** on Wednesday, May 1, 2013 at 11:21pm.

Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000 (inclusive). How

many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?

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**ianian**, Thursday, May 2, 2013 at 5:41am
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