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Numerical Ability
Arithmetic
20. What is the max possible 3 digit prime number?
Read Solution (Total 6)
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- check for 999 its divided by 3,9, so its not a prime
now check for 998, its divided by 2 , so not a prime no.
997, not divided by, 2,3,5,7,11,13,17,19,23,29,31
so 997 is the max 3 digit prime number. - 10 years agoHelpfull: Yes(34) No(1)
- 997 will not be divided by any of the no. 2,3,4,5,6,7,8,9...etc
- 10 years agoHelpfull: Yes(4) No(1)
- take first 999 which is not prime number, so then take 998 it is also not prime, so next take 997 this is not divisible by any number so the answer must be 997, This is called trial and error method
- 10 years agoHelpfull: Yes(2) No(0)
- 997 is divisible by 1 and 997 so ..it is the max possible 3 digit prime number
- 9 years agoHelpfull: Yes(1) No(0)
- 997 can't be divided by any other number except 1 & 997.
997 is answer - 9 years agoHelpfull: Yes(1) No(0)
- 8*9*3c2=216
- 10 years agoHelpfull: Yes(0) No(3)
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