Posted by **AL** on Monday, October 4, 2010 at 8:37am.

N and P are integers greater than 1

5N is the square of a number

75NP is the cube of a number

the smallest value for N+P IS what?

i cant figure it out, please help

thank you so much

- math -
**bobpursley**, Monday, October 4, 2010 at 10:25am
5N is a square: squares: 4,9,16,25,36,49,64,81,100,...

Now which of those are divisible by five?

now look at cubes. 8,27,64,125,256,...15^3

which of those are divisible by 75?

so if N is 5, and 75*5*P=15^3

then P is 9

- math -
**AL**, Monday, October 4, 2010 at 10:39am
thank you so much

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