It's only a quiz and apparently we get a small curve at the end of the semester, so I'm not too worried. I was just frustrated with myself when I couldn't figure it out
The Element of Procrastination
(13! + 7^25) mod 30
That's easy. First off, 13! = 0 mod 30 because 13! = 1*2*
3*4*5*6*7*8*9*
10*11*12*13.
As for 7^25, by the Eurler Totient Theorem you know that 7^8 = 1 mod 30, so 7^25 = (7^8)^3*7 = 1^3*7 = 7 mod 30. So the final answer is 7.
edited 18th Apr '12 11:12:05 AM by storyyeller
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
I know what a factorial is and given some time, I could power 7 25 times, but what is a mod?
edited 18th Apr '12 11:12:24 AM by OrionAurora
Yeah, Andromeda is heading for you. You got over 9000 years until it collides.
Numbers make my head hurt.
That question would be doable in 3 minutes with a calculator, but if that was supposed to be done by hand...
The whole point is that you aren't supposed to actually calculate the power. What if it was 7^800001 instead?
edited 18th Apr '12 11:14:22 AM by storyyeller
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
Yeller: Yea, my gut reaction was some convoluted algebra, since I've pretty much forgotten everything you used to solve that. Figured there must have been some kind of trick to it, though.
It's not algebra, it's number theory, which is the class Ilsemmr was in. It seems like a pretty standard question to me.
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
@ Storyyeller: (Headdesk) HOW IN THE WORLD DID I MISS THAT! D:
Damn it, how could I not have remembered 3 mod 30 is 0?! HOW?! Damn it.
edited 18th Apr '12 11:23:45 AM by ilsemmr
The Element of Procrastination
I never saw the point to algebra.
In other news, does anyone actually care about my
Ace Attorney commentary?
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
![[up]](https://static.tvtropes.org/pmwiki/pub/smiles/arrow_up.png "[up]")
I don't see why not. Its fun to see others opinions.
The internet is the realm of chaos, but not all chaos is evil.
I never took calculus
Although I need to learn at least some before I take physics. I'll try to teach myself over the summer when I'm not doing anything anyway.
The Element of Procrastination
So Goodman is an alien? That would explain how they managed to murder him twice in different places.
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
I'm a senior in high school and I'm only in Algebra II :3
Speaking of which, CDRW, are you still sick?
Tick Tock, goes the clock/ He cradled and he rocked her/ Tick Tock, goes the clock/Till River kills the Doctor.
What do you call when you have the capacity to be brilliant, and yet never bother to learn. Stupid?
Yeller: And that mis-application is probably why it didn't really work. And I pretty much have forgotten all that stuff. That'll teach me to post my incoherent ramblings.
I'm currently in a calculus class. I need it for my planetary studies.
Yeah, Andromeda is heading for you. You got over 9000 years until it collides.
Orion are you planning to learn about relativity too?
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
