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What is next number in the series 1,2,3,5,7,11,_
on 12/20/2009 | Category:
Aptitute Test Interview questions
| Views: 15938
Select from following answers:
13 is correct answer as this is prime number series.
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Comments or Responses
on: 6/28/2012 |
Answer is 13 because all the given no in series are prime no in sequence and hence after 11 no the prime
no is 13
on: 7/13/2012 |
You should remove 1 from the series as it is not a prime number
A prime number is a natural number
greater than 1
that has no positive divisors other than 1 and itself
on: 12/1/2012 |
A prime is the number which have two different divisors, one divisor is 1, and other one the number itself. so we can not put 1 in the series of prime numbers as 1 has only one divisor that is 1( itself).
on: 11/4/2015 |
1 2 3 5 7 11 15 is well-known sequence «number of partitions of n (the partition numbers)»
As mentioned before, answer 13 is incorrect because of 1 is not prime.
You should fix correct answer for this question on 15.
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