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Sum of the first 9 Natural Numbers
Sum of the First
<-- Enter n
Calculate the sum of the first 9 Natural Numbers
Σ n Natural Numbers formula:
S
_{9}
=
n(n + 1)
2
S
_{9}
=
9(9 + 1)
2
S
_{9}
=
9(10)
2
S
_{9}
=
90
2
S
_{9}
=
45
Display the first 9 Natural Numbers where N
_{n}
denotes the n
^{th}
number
n
N
_{n}
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
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