4 ms·
Great explanation—thanks. I think I got the upshot, though I am unclear on what function rad() is.
by westoncb 8y ago
Great explanation—thanks. I think I got the upshot, though I am unclear on what function rad() is.
- edflsafoiewq 8y agorad is the arbitrary function you asked about ;) rad(x) is the product of the distinct prime factors of x, ie. it drops repeated prime factors, rad(2^n)=2, etc.
- rocqua 8y agorad is the radical of a number [1]. In short rad(x) is the product of all unique prime factors of x. So rad(8) = 2, rad(24) = 6, rad(75) = 15 [1] https://en.wikipedia.org/wiki/Radical_of_an_integer https://en.wikipedia.org/wiki/Radical_of_an_integer