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Let A = {9,10,11,12,13} and let f : A ra...

Let A = {9,10,11,12,13} and let f : A `rarr` N be defined by f (n) = the highest prime factor of n. find the range of f.

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`f(9)=3`
`f(10)=5`
`f(11)=11`
`f(12)=3`
`f(13)=13`
`therefore` Range of `f=3,5,11,13`
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