Which of the following is a prime number?
23882990
16769023
38377296
11723835
A prime number has no positive divisors other than 1 and itself. Hence, a prime bigger than 2 cannot be even. All prime numbers bigger than 5, written in the usual decimal system, end in 1, 3, 7, or 9.
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Answers by country
23882990
16769023
38377296
11723835
answers
Malaysia
13
India
158
Unknown
22
Republic of Ireland
18
the Netherlands
21
the United States
257
the United Kingdom
132
Australia
32
Germany
84
Poland
16282
Ghana
17
Austria
14
Greece
18
France
17
Canada
26
the Philippines
29
Spain
10
Pakistan
19