11, 13, 17 and 19
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2,4,6,8,10,12,14,15,16,18,20,21
Prime numbers: 11, 13, 17, 19, 23, 29 Composite numbers: 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30
twenty three and twenty nine!! :)
The composite numbers between 20 and 25 are 21, 22, and 24. 23 is the only prime number between 20 and 25.
23, 29, 31, 37, 41.