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File:Prime number Cuisenaire rods 7.png

File:Prime number Cuisenaire rods 7.png

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Ficheru:Prime number Cuisenaire rods 7.png
DescriptionPrime number Cuisenaire rods 7.png English: Showing, through Cuisenaire rods, that 7 is a prime number. Date 29 April 2016 Source Own work Author