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Playing With Numbers
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Properties of Factors and Multiples
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Express each number as a product of its
Question
Express each number as a product of its prime factors:
(i)
1
4
0
(ii)
1
5
6
(iii)
3
8
2
5
(iv)
5
0
0
5
(v)
7
4
2
9
Medium
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Solution
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(i)
1
4
0
1
4
0
=
2
×
7
0
=
2
×
2
×
3
5
=
2
×
2
×
5
×
7
=
2
×
2
×
5
×
7
×
1
(ii)
1
5
6
1
5
6
=
2
×
7
8
=
2
×
2
×
3
9
=
2
×
2
×
3
×
1
3
=
2
×
2
×
3
×
1
3
×
1
(iii)
3
8
2
5
3
8
2
5
=
3
×
1
2
7
5
=
3
×
3
×
4
2
5
=
3
×
3
×
5
×
8
5
=
3
×
3
×
5
×
5
×
1
7
=
3
×
3
×
5
×
5
×
1
7
×
1
(iv)
5
0
0
5
5
0
0
5
=
5
×
1
0
0
1
=
5
×
7
×
1
4
3
=
5
×
7
×
1
1
×
1
3
=
5
×
7
×
1
1
×
1
3
×
1
(v)
7
4
2
9
7
4
2
9
=
1
7
×
4
3
7
=
1
7
×
1
9
×
2
3
=
1
7
×
1
9
×
2
3
×
1
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Mathematics
NCERT
Exercise 1.2
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