I am a prime number between 40 and 50.If you add one to me, the sum oftheprimefactorsofthatcompositenumberis11

Question

What number am I?

Answer 1

It helps to write the actual question in the body of the message so people can read it :)
However, it is still visible in some other places.
The only primes between 40 and 50 are 41, 43, 47. Add one to get 42, 44, 48.
42 = 2*3*7 which adds to 12.
44 = 4*11 which adds to 15.
48 = 2*2*2*2*3 which adds to 11.
So you want 47.

Answer 2

47, and next time put spaces inbetween your words so that we can acctually read the question.