Question

Determinati toate numerele naturale de format
a) 23x
b) 2x1x
c) 4xx2
d) 3 2y, x=y, divizibil cu 5

Answer 1

a)230,231,232,233,234,235,236,237,238,239
b)2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2110,2111,2112,2113,2114,2115,2116,2117,2118,2119,2210,2211,2212,2213,2214....
c)4002,4012,4032,4042,4052,4062,4062,4072,4082,4092,4102,4112,4122,4132,4142,4152....
d)sper ca acolo intre 3 si 2 ii x , si daca e asa numerele sunt: 3020,3525