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scrieti divizori numerelor:2,3,5,9,10 din sirul:1,2,3,6,32390,52110,4815,788,2430

a)(2x-1)|81
b)(2x+3)|24
c)(x-5)|40
x=?


Răspuns :

D2€{1,2,6,32390,52110,788,2430}
D3€{1,3,6,52110,4815,2430}
D5€{1,32390,52110,4815,2430}
D9€{1,52110,4815,2430}
D10€{1,32390,52110,2430}