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Post by Anonymousperson5 on Apr 24, 2011 5:07:36 GMT
This will also be on the next page.
6!/4
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Post by Elmach on Apr 24, 2011 9:19:37 GMT
181...
Is...
Prime?
181<225=15^2 Last digit even? Nope. Sum divisible by 3? Nope. Last digit 5 or 0? Nope. Dividing by seven-- 181-140=41=/=42 which is divisible by seven. Nope. Dividing by 13--181-130=51-39=12 which is not 13.
PRIME! BOOYAH!
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Post by Fringe Pioneer on Apr 24, 2011 18:54:18 GMT
You forgot to check against 11, but nevertheless 181 is prime.
2 * 7 * 13
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Post by Elmach on May 5, 2011 1:37:50 GMT
183...
Is...
COMPOSITE!
BOOYAH!
183 = 3*61
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Post by Fringe Pioneer on May 5, 2011 1:41:37 GMT
23 * 23
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Post by Anonymousperson5 on May 5, 2011 2:35:09 GMT
5*37
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Post by Elmach on May 5, 2011 7:18:54 GMT
186...
Is...
COMPOSITE!
186=2*3*31
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Post by Fringe Pioneer on May 5, 2011 13:04:07 GMT
11 * 17
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Post by RubiksMaster123 on May 6, 2011 0:21:07 GMT
188=2*2*47
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Post by Elmach on May 6, 2011 1:41:13 GMT
189...
Is...
COMPOSITE!
BOOYAH!
189=33*7
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Post by Fringe Pioneer on May 6, 2011 2:12:32 GMT
2 * 5 * 19
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Post by Anonymousperson5 on May 7, 2011 17:02:45 GMT
191
YOU JUST HAD TO BE PRIME, EH???
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Post by Draxorion on May 7, 2011 22:03:36 GMT
211... We don't really need to say anything, do we?
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Post by Fringe Pioneer on May 7, 2011 22:48:06 GMT
Yes, you do. You just went out of order.
192 is composite, and 193 is prime.
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Post by Draxorion on May 8, 2011 0:01:03 GMT
I apologize... I'll continue from 197 then, if you'll pardon me.
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Post by Elmach on May 8, 2011 0:12:42 GMT
You went out of order again.
194 is even, and composite, and 195 is a multiple of five, and composite.
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Post by Draxorion on May 8, 2011 0:15:38 GMT
We're talking about prime numbers though.
Edit: Alright then, I apologize, I actually read the instructions... 196... Composite.
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Post by Elmach on May 8, 2011 2:12:34 GMT
197...
152 is 225, so we only need to check prime numbers less than it.
2? Not even at all. 3? Sum not multiple of three. 5? Look, it's quite obvious that 197 isn't a multiple of 5. 7? No, because it is equivalent to 30. 11? Nope. 1-9+7 isn't a multiple of 11. 13? It is equivalent to 47, which is not divisible by 13.
Yep, 197...
is...
PRIME! BOOYAH!
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Post by Fringe Pioneer on May 8, 2011 2:58:51 GMT
2 * 32 * 11
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Post by Draxorion on May 8, 2011 4:10:53 GMT
199, prime...
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Post by Elmach on May 8, 2011 17:20:17 GMT
200
ON THE NEXT PAGE
BOOYAH! BOOYAH!
AND IT'S COMPOSITE
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Post by Fringe Pioneer on May 8, 2011 22:09:11 GMT
3 * 67
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Post by Draxorion on May 8, 2011 23:59:42 GMT
202, Composite...
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Post by Fringe Pioneer on May 9, 2011 1:35:39 GMT
7 * 29
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Post by Draxorion on May 9, 2011 1:45:53 GMT
204, Composite...
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