2 thoughts on “What is the sum of the factors of a number?”
Hi Sir, could you tell me if you have a post on rightmost non zero digit of multiplication of numbers with powers? For ex- rightmost non zero digit of 370^1231 + 130^1230?
Afraid not, as all that takes is calculating the individual last digits (already covered) and multiplying them. Did not seem to justify a post. Not enough value-add..
CAT-holics 
Hi Sir, could you tell me if you have a post on rightmost non zero digit of multiplication of numbers with powers? For ex- rightmost non zero digit of 370^1231 + 130^1230?
Afraid not, as all that takes is calculating the individual last digits (already covered) and multiplying them. Did not seem to justify a post. Not enough value-add..
regards
J