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Re-Introduction to Number
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Show that the number 4^n , ...
Question
Show that the number
$4_{n}$
, when n is a natural number cannot end with the digit zero
Easy
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Solution
Verified by Toppr
If any number ends with zero, then it must be divisible by 5
Hence, its prime factorization must contain 5
But we know,
$4=2×2$
So, there is no natural number
$n$
for which
$4_{n}$
can end with zero
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