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UPSC CDS 1 2021 Math Paper
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© examsnet.com
Question : 32
Total: 100
What is the remainder when
2
1000000
is divided by
7
?
1
2
4
6
Validate
Solution:
👈: Video Solution
we have to find remainder of
2
100000
7
We know
R
[
2
3
7
]
=
R
[
8
7
]
=
1
R
[
2
100000
7
]
=
R
[
(
2
3
)
33333
×
2
7
]
=
R
[
(
2
3
)
33333
7
]
×
R
[
2
7
]
=
1
×
2
=
2
© examsnet.com
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