11+9
12+8
10+10
13+7
14+6
15+5
16+4
17+3
18+2
19+1
these are the 20 facts hope it helps u :)
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It is the 6th prime number.
26 = 64
composite even deficient
The number 11 is a prime number and it`s factors are 1 and 11
2 + 2 = 4. This is a fact.It is the first prime number.