aaabbb = aaa000 + bbb
= a.111.1000 + b.111
= a.3.37.1000 + b.3.37
= 37.(a.3.1000 + b.3) ⋮ 37
Ta có: \(\overline{aaabbb}=\overline{aaa000}+\overline{bbb}\)
\(=111a.1000+111b\)
\(=3a.37.1000+3b.37\)
\(=37\left(3a.1000+3b\right)\) chia hết cho 37
Vậy \(\overline{aaabbb}\) chia hết cho 37.
aaabbb chia het cho 37
ban nhe
tk nhe
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bye
ta có aaabbb=aaa000+bbb
=111.a1000+111b
=3a.371000+3b.37
=37(3a.1000+3b) chọn
Tu giai quyet nha 😋