I am a three digit number the sum of my digits is 10. my first digit and my last digit are the same what number am i?

Question

I am a three digit number the sum of my digits is 10. my first digit and my last digit are the same what number am i?
A 181
B 262
C 343 
D 505

Ms. Sue · Answer

All of them are correct, according to the information you posted.

lilly · Answer

I don't understand the part of "one of my factors is 7" can you explain that to me Ms.Sue?