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.the number 232 -1 has several divisors greater than 1 and less than 100.the sum of these divisors is clue:22n+1 is a prime for n=1,2,3,4 a)172 b)125 c)91 d)176
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- Answer is 176..option d
- 8 years agoHelpfull: Yes(3) No(2)
- i don't understand this one..please expalin ...!!!
- 8 years agoHelpfull: Yes(1) No(1)
- i think
232-1=231
231=3*7*11
so 231 can have divisors 3,7,11,33,21,77
sum of divisors is 3+7+11+21+33+77=152
so answer is 152 - 8 years agoHelpfull: Yes(1) No(1)
- d)176...correct answer
- 8 years agoHelpfull: Yes(0) No(2)
- how plszz anyone explain it
- 8 years agoHelpfull: Yes(0) No(0)
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