http://diogorego.paginas.sapo.pt/flashs/mult_divisores.swf
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http://www.joaquincarrion.com/Recursosdidacticos/SEXTO/datos/03_Mates/datos/05_rdi/ud04/unidad04.htm
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http://www.primaria.librosvivos.net/archivosCMS/3/3/16/usuarios/103294/9/6EP_Mate_cas_ud4_problemas_222/frame_prim.swf
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http://www.ematematicas.net/destructor.php
Recuerda:
http://www.wikisaber.es/Contenidos/LObjects/prime_numbers/index.html