--- Lelio <leliorp@...> wrote:

> What I meant was:
>
> Pfgw -f -q((2^^4200+13)^^30-1)/(2^^4200+12)
>
> ((2^4200+13)^30-1)/(2^4200+12) has factors: 2


But what on earth has that expression got to do with Phi(30)?

? polcyclo(30)
x^8 + x^7 - x^5 - x^4 - x^3 + x + 1

? ((x^30-1)*(x^2-1)*(x^3-1)*(x^5-1))/((x^15-1)*(x^10-1)*(x^6-1)*(x-1))
x^8 + x^7 - x^5 - x^4 - x^3 + x + 1

You're not under the misapprehension that 30 is prime, are you?

Phil

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