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Byju's Answer
Standard VIII
Mathematics
Cube of a Number
find the unit...
Question
find the unit digit of the expression?
(216)
1000
*(625)
2000
*(514)
3000
Open in App
Solution
If
the
unit
digit
of
a
number
is
6
then
for
any
positive
integral
exponent
,
the
unit
digit
of
power
will
be
6
.
And
if
the
unit
digit
of
a
number
is
5
then
for
any
positive
integral
exponent
,
the
unit
digit
of
power
will
be
5
.
So
,
the
unit
digit
of
216
1000
=
6
And
the
unit
digit
of
625
2000
=
5
Now
,
6
×
5
=
30
Here
,
unit
digit
is
0
Therefore
,
the
unit
digit
of
216
1000
×
625
2000
=
0
If
the
unit
digit
of
any
number
is
0
and
we
miltiply
it
by
any
integral
number
,
then
the
unit
digit
of
resulatant
number
be
also
0
.
Hence
,
the
unit
digit
of
216
1000
×
625
2000
×
514
3000
=
0
Suggest Corrections
0
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