why are important the emirp numbers ?

for example :13 is prime number so 31 is emirp number
17 is prime so 71 is emirp
you have learned about them ?

Question

why are important the emirp numbers ?

for example :13 is prime number so 31 is emirp number 
17 is prime so 71 is emirp 
you have learned about them ?

Angle · Answer

prime numbers =/= emirp numbers

for example 89 is prime
but 98 is not prime

jhonyy9 · Answer

yes i know i ve not sad that every prime are emirp bc. 17 is with 71 but 19 with 91 not is or there are so much

Angle · Answer

ok, so I am not really understanding your question?

jhonyy9 · Answer

why ? this is easy i ve asked why are important these emirp numbers ? where are these used ? and why i  not have learned nothing about them in my study ? you ve learned in your study anything about them ?

jhonyy9 · Answer

or somebody thought it interesting thing

Angle · Answer

I have not learned about these in my studies. But it seems like more of a "fun fact" without any real applications

jhonyy9 · Answer

same with me when i ve wrote my ideas about supertwins and startwins or superstartwins and so much in OS

jhonyy9 · Answer

ok. ty. @Angle

jhonyy9 · Answer

@Shadow your opinion please about these ?

silvernight269 · Answer

Shadow stop viewing and start helping

jhonyy9 · Answer

@TheSmartOne your opinion .please ? - ty.

TheSmartOne · Answer

I have not learned about this either. Seems very interesting, but as angle said, I don't believe there is any real application of emirp (and it's a mouthful compared to prime)

jhonyy9 · Answer

thank you TSO