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NUMBER GAME: Find the secret number between 1 og 100 with as few questions as possible





This is a game for real math nerds!

RULES: The box contains the numbers 1 to 100 and one of them is the secret number. The game play is to find the secret number by asking the questions written below. The purpose of asking the questions is to determine if the number is part of a given sequence of numbers.

If the answer to the question is 'Yes' then all the numbers in the given sequence remain and the other numbers are blanked out. If the answer to the question is 'No' then it is the other way around.

The game ends when only on number remains - the secret number. You have to use as few questions as possible to find the number.
If you are good at this - you might hit the highscore list.


Click on a question...
Is the number a...
Prime?
Mersenne number?
Fermat number?
Cubic number?
Triangular number?
Square number?
Centered pentagonal number?
Centered hexagonal number?
Centered heptagonal number?
Pyramidal number?
Factorial number?
Fibonacci number?
Lucas number?
Palindrome number?
Harshad number?
Perfect number?
Semi prime?
Happy number?
Lucky number?
Cake number?
Lazy caterers number?
Hilbert number?
Leyland number?
Is the number...
divisible by 2?
divisible by 3?
divisible by 4?
divisible by 5?
divisible by 6?
divisible by 7?
divisible by 8?
divisible by 9?
divisible by 10?
divisible by 11?
divisible by 13?
divisible by 17?
divisible by 19?

Is the digital sum of the number...
divisible by 2?
divisible by 3?
divisible by 5?
divisible by 7?
divisible by 8?
divisible by 11?
divisible by 13?


HIGHSCORE list
- or maybe it should be called the lowscore list because it all about using as few questions as possible.

Number No. of questions Record owner When
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 9 ELISA 2 years ago
17
18
19
20
21
22
23
24
25
26
27
28 6 DRE 3 years ago
29
30
31
32
33
34
35 8 DRE 3 years ago
36 8 DS 3 years ago
37
38
39
40
41
42 6 DS 3 years ago
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59 8 DRE 3 years ago
60 8 DRE 3 years ago
61
62
63
64 7 DRE 3 years ago
65
66
67
68
69
70 11 ELISA 2 years ago
71 8 DRE 3 years ago
72 28 ELISA 2 years ago
73
74
75 9 ELISA 2 years ago
76
77
78
79
80
81 18 ELISA 2 years ago
82
83
84 8 DRE 3 years ago
85
86 6 DS 3 years ago
87
88
89
90
91
92
93
94
95
96 7 DS 3 years ago
97
98
99
100 5 ELISA 2 years ago


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