iammoxx
iammoxx iammoxx
  • 15-07-2018
  • Mathematics
contestada

If least prime factor of p is 3 and least prime factor of q is 5 , then what is least prime factor of (p+q)?

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DeanR
DeanR DeanR
  • 15-07-2018

We conclude 2 isn't a factor of p or q (since their least factors are 3 and 5 respectively), i.e. p & q are both odd. So the sum is even and its least prime factor must be the smallest prime, 2.


Answer: 2


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