Divisibility Test

0 & 1 - All numbers are divisible by 0 and 1.

2 - The number ends in 0, 2, 4, 6, or 8

3462350971235735692 <- Divisible by 2

3 - The sum of all the digits is divisible by 3.

27336 = 2 + 7 + 3 + 3 + 6 = 21/3 = 7 <- Divisible by 3

4 - The last two digits are divisible by 4.

324154123451251324536 = 36/4 = 9 <- Divisible by 4

5 - The number ends in 0 or 5.

1237456918723455 <- Divisible by 5

6 - Use the rules for 2 and 3. If it ends in 0, 2, 4, 6, or 8 and the sum of the digits is divisible by three then so is it.

542718 = 27/3 = 9, and ends in 8 <- Divisible by 6

7 - 1 * 1s digit + 3 * 10s digit + 2 * 100s digit - 1 * 1000s digit - 3 * 10000s digit - 2 * 100000s digit + 1 * 1000000s digit ... If the sum is divisible by 7 then so is the number. The pattern is multiply each digit starting at 1s by 1,3,2,1,3,2,1,3,2 in order, alternating +, -, +, ... for each group of 132.

7108402 = +(1*2)+(3*0)+(2*4)-(1*8)-(3*0)-(2*1)+(1*7) = 7 <- Divisible by 7

8 - If the hundreds digit is even, check if the last two digits are a multiple of 8.
- If the hundreds digit is odd, check if the last two digits are a multiple of 4 but not 8.

12341361345123515832 - 8 = even - 32/8 = 4 <- Divisible by 8
6234512346312 - 3 = odd - 12/4 = 3, 12/8 = 1.5 <- Divisible by 8

9 - The sum of the digits are divisible by 9

819 = 8 + 1 + 9 = 18/9 = 2 <- Divisible by 9

10 - The last digit is 0.

18947091235698762530 <- divisible by 10

11 - Formulate the digits in reverse order alternating - and + starting with -. If the sum is divisible by 11 so is the number. Also if the number is an odd numbered palindrome with a central even digit the number is divisible by 11.
913891 = 1 - 9 + 8 - 3 + 1 - 9 = -11 <- Divisible by 11
123456787654321 < Divisible by 11

Keep watching MTV because they care about the environment.

I'm glad to see that MTV cares about our environment no matter how far it is from their home base.  I guess MTV decided to record an episode of their Road Rules show (premiering September 17th) on a isolated beach in Panama (No it's not really filmed on a deserted island as they claim in the show.)  But here's a glimpse of how MTV and their environmentally friendly/green stance leaves a pristine beach when they're finished.

This makes me fuking sick!!  I hope those at MTV who were involved in this mess choke on a fish bone!

Tires, donuts of death!

A 20/20 investigation found some interesting facts about new tires. It turns out that Automakers have been warning consumers for ever about death donuts. Older tires (over 6 years old) can become brittle and crack even if they've never been driven on. So, next time you're in the market for new tires check them out. Look for a three or four digit number (DOT code) in an oval on one of the side walls of the tire. They will look like this...



If the number is three digit, the first two number are the week in which the tire was manufactured and the last digit is the year in the 90's. So 414 as seen above was manufactured in the 41st week of 1994, making this tire 14 years old. If the number is 4 digits it was manufactured in the 2000's. So 2402 from above was manufactured in the 24th week of 2002.

Before you purchase any tires ask the vendor if you can look at the tires and check their age. Don't take no for an answer. If they won't allow it take your business elsewhere. In my opinion if the tires are more then a year old, do not purchase them. If they are more then 6 years old, make it known to the vendor and seek tires elsewhere. According to 20/20 the largest offenders they found were Sears and Walmart.

Here's the 20/20 video if you'd like to watch it.

Has the Large Hadron Collider destroied the world yet?

Has the Large Hadron Collider destroied the world yet?

Republican National Convention in a minute

In a minute!

State of Power...

To believe that everyone should think and believe like you is immature and very Hitleresque. We all have different values in our life, sooner or later those values begin to clash. Right now we solve it by proving whose right and oppressing the values of whose wrong. But wouldn't it be nice if we could move where the local values fit more like our own, while still remaining under the same system? That way, if you're for marijuana, you won't get upset when your neighbor sits on his front porch smoking a big fatty.

Don't forget, America is built on the idea of freedom, not the oppression of he who is wrong.

Torture, right or wrong?

I was recently posed the question of whether or not torture in Iraq was wrong. After a great deal of comparing real information with misinformation that could be devised from torture I came up with a question of greater significance.

All I know is that when military action is dictated by popular opinion, the military is almost always defeated. Popular/Mob mentality is never rational when it comes to the military and tactics. The average person is all about instant gratification and adversely tactics are all about patients. Personally I think the largest hindrance to US efforts abroad is interference by the American people. Could the US have won VietNam? Of course. If it hadn't been for leaders being more concerned about their own popularity then the outcome of the war, the US could have crushed the communist North Vietnamees and the world would be a different place. But that was not to be.

If the people of Rome had stayed out of military dealings during the Second Punic War and allowed Fabius to defeat Hannibal they wouldn't have been completely crushed at Cannae. Fabius knew Hannabal was the better general when Hannibal was able to choose his own battle field. Unfortunately the people saw Fabius' tactics as indecisiveness instead of patients. If Fabius had been allowed to continue what the people chose him to do, it's my opinion that he would have defeated Hannibal long before Cannae as he nearly did at Campania. But instead popular opinion elected Marcus Vera consol in 216BC on the promise of a grand army crushing Hannibal once and for all. Because of that Rome suffered it's greatest defeat ever at Cannae. At Cannae the Romans had amassed an army of nearly 100,000 men to confront Hannibal's much smaller armyof around 25,000. In the end the Romans were routed with losses between 50,000 and 70,000 men. If it hadn't been for Hannabal's indecision after Cannae, Rome would have been no more.

Islam is not fighting a war of IUDs and bombs. It's fighting a war of popular opinion orchestrated by fundamentalist Islam and accessorized by the western media. They know if they can shift American popular opinion against the war that America will eventually be forced to pull out of Iraq by its own people. Use the ignorance of the people against themselves, what a brilliant tactic.

Is torture right or wrong? I don't know, I leave that to the philosophers to debate. The real question is, what did more harm to a favorable outcome in Iraq, the act torture itself or the fact that the media lambasted the population with the images of torture?