Explanation

• 11, 12, 17, 18, 23, 24, ... The number which comes next in the series is '29'.
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• Explanation

The primary numbers 11, 12, 17, 18, 23, 24 are

After skipping we get

11, 12, 17, 23, 29

The next number is 29

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• Another related Question for your preparation
• Complete the series 1,1,8,4,27,9______64
• Complete the series: 1,3,8,19,42, .................89