Math, asked by lakhanlalagarwpc5yi3, 1 year ago

in a 3 digit prime number ,sum of its digit is 5 if the ones and hundreds digit are interchanged it still remains prime number what is the original number and what is the changed number

Answers

Answered by pkr21
2
131 is the answer ................

lakhanlalagarwpc5yi3: tell the formula
pkr21: no formula used .. just done
lakhanlalagarwpc5yi3: and answer is 311also
pkr21: yesssss when formula fails common sense is used
pkr21: good
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