# Thread: Number Properties : prime number

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## Number Properties : prime number

SPOILER: is A

Thanks

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Maximum sum of digits of 2 digit positive integer is 18 so, prime number <18 are 11,13,17 so, numbers are

29,92,38,83,47,74,56,65 -----sum of digits is 11
49,94,58,85,67,76------------sum of digits is 13
89,98------------------------sum of digits is 17

So, Ans is 16----(A)

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Hey Manish!! Nice to see you back on forum and that too replying to my posts So Manish I guess you would have completed you MBA??

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Originally Posted by manish8109
Maximum sum of digits of 2 digit positive integer is 18 so, prime number <18 are 11,13,17 so, numbers are

29,92,38,83,47,74,56,65 -----sum of digits is 11
49,94,58,85,67,76------------sum of digits is 13
89,98------------------------sum of digits is 17

So, Ans is 16----(A)
Well, well, well.. Look who has decided to pay the forum a visit!

Welcome back, Manish. Your presence always makes this forum richer.

What are you upto these days?

- iisan

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