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What is the largest perfect square less than 225 that is a multiple of 9?
Wiki User
∙ 14y ago
If it's to be a multiple of 9 the its digits must sum to a multiple of 9. Squares under 225 are 196,169,144,121,100... 144 ie 12 squared (and 9 x 16) would seem to be the figure you're looking for.
Wiki User
∙ 14y ago
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