Only 1. 13 is a Prime number.
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13 and 65/100 which reduces to 13 and 13/20 --------------------------mixed number (20*13+13)/20 273/20 --------------------improper fraction
Nothing goes into 13 evenly other than 1 and 13, so that means it is a prime number.
20 ÷ 13 = 1 r 7 → 20/13 = 17/13
13 35/100 or 13 7/20
It is: 13/20 = 0.65 as a decimal