Fill in the Gaps

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samiul_samin
Posts:1007
Joined:Sat Dec 09, 2017 1:32 pm
Fill in the Gaps

Unread post by samiul_samin » Sun Feb 18, 2018 8:53 pm

Fill in the Gaps
11,31,71,...,32,92,...,73
This type of problem is confusing for me.I think it is an easy problem.

103568
Posts:7
Joined:Fri Jan 29, 2021 10:58 am
Location:Sylhet

Re: Fill in the Gaps

Unread post by 103568 » Fri Aug 20, 2021 11:00 am

samiul_samin wrote:
Sun Feb 18, 2018 8:53 pm
Fill in the Gaps
11,31,71,...,32,92,...,73
This type of problem is confusing for me.I think it is an easy problem.
If we look at the series of prime numbers starting from 11, we get
11, 13, 17, 19, 23, 29, 31, 37.
Now, creating a new series with the reversal term of these numbers, we get
11, 31, 71, 91, 32, 92, 13, 73.
So, the missing numbers should be 91 and 13.
Thank you

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