questionedithistorytranslations

What is the smallest perfect number?

6
28
2
128
A perfect number is a positive integer that is equal to the sum of its proper positive divisors, excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself).
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Answers by country

6
28
2
128
answers
flagAustralia
71%
8%
14%
5%
35
flagthe Netherlands
66%
5%
27%
0%
18
flagthe United States
54%
4%
33%
6%
87
flagSwitzerland
54%
9%
36%
0%
22
flagPoland
53%
9%
32%
5%
2197
flagPakistan
50%
0%
50%
0%
10
flagCanada
50%
0%
40%
10%
10
flagthe United Kingdom
43%
9%
46%
0%
62
flagGermany
42%
6%
46%
3%
235
flagAustria
32%
12%
50%
5%
40
flagIndia
21%
13%
56%
6%
65

Which number is considered unlucky in East Asia?

3
4
12
40

Which numeral system was in use in ancient Sumer and Babylon?

octal
binary
decimal
sexagesimal

What is the sum of all the numbers on the roulette wheel?

600
666
783
1000

What is the highest point in India?

Mt. Everest
K2
Annapurna
Kangchenjunga