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A square divides concatenation (Posted on 2018-09-22)

What 3-dgit number abc squared divides abcabc?

NB: italic font denotes a concatenation, as opposed to a product.

Submitted by Ady TZIDON

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Solution: (Hide)

143, the only 3-digit divisor of 1001

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	soln via computer	Steven Lord	2018-09-22 08:05:10

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