Question

Determinati nr. nat. divizibile de forma
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12ab0
REPEDEEEEEEEEEE!!!!!!!
va rog

Answer 1

12ab0 divizibil cu 3=> 1+2+a+b+0=M3;  a+b=M3;  a+b={0,3,6,9,12,15,18}

12ab0={12000, 12030, 12060, 12090, 12120, 12140, 12170, 12210, 12240; 12270, 12300, 12330, 12360, 12390, 12420, 12450, 12480, 12510, 12540, 12570, 12600, 12630, 12660, 12690, 12720, 12750, 12780, 12810, 12840, 12870, 12900, 12930, 12960, 12990}