Find the next number
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5
23-2=21
21+3=24
24-5=19
19+7=26
26-11=15
15+13=28
28-17=11
11+19=30
30-23=7
7+29=36
36-31=5
(2,3,5,7,11,13,17,19,23,29,31,37,41,43… are Prime Numbers)
Your Answer
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