MCQ
$(183\,!) + {3^{183}}$ નો એકમનો અંક મેળવો.
- ✓$7$
- B$6$
- C$3$
- D$0$
$\therefore {3^{180}} = {({3^4})^{45}}$ terminates in $1$
Also ${3^3}$ $= 27$ terminates in $7$
${3^{183}} = {3^{180}}{3^3}$ terminates in $7.$
$183! + {3^{183}}$ terminates in $7$
$i.e$. the digit in the unit place $= 7$.
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