I asked my girlfriend questions to generate a 9 digit number. I then took the mod of this number by 28007330. Your goal is to guess the number.

Taking this literally, the middle sentence seems like superfluous information. Like "I generated a number. Then I went on a walk. Your goal is to guess the number"

@marvingardens i understood it differently.

• I generated a nine digit number x

• Then i created the y := (x % 28007330).

• Now you have to guess the new number y.

I assume "the" refers to the most recent result, not to "a 9digit number".

@Henry38hw I'm sure we all made that assumption. You do not have to explain it. However, that is an adjustment you are making to the literal text.

is the random number from 1 to 100 an integer or any real number?

whats the cutoff for when you have to have traded to be allowed to guess?

@jatloe I'll open permissions on the guesses sheet for editing... let's say Saturday morning time frame. And close it on Sunday evening time frame, let's say by 6:00pm ET (though I might be late actually closing it, we'll use 6:00 as the cutoff). I'll make the cutoff for "have traded" be the same as the closing time for the sheet (so no guessing using your friends username and then telling them to trade after).

I literally googled "random number between 1 and 100". I will not say what the result was, but I did follow the procedure :P

@DannyqnOht Is it okay if I write my guess in the comment section instead?

@Eliza Hmmm... Yeah, I was just trying to prevent clutter. Bens comment sections get pretty long with all the guesses, I wanted to keep it more condensed. But we don't have that many traders here 😂

In general, everyone can feel free to use the sheet or comments section for your guesses if you want, same 6:00pm Sunday cutoff. If I see both, the guesses on the sheet will take precedence.

First day's hint added to the description!

@traders I decided to clarify error behavior to reduce the penalty for an error.

If there are no errors, you should expect to need 10 guesses to get the answer. 28007330 = 13 X 17 X 19 X 23 X 29 X 10.

If an error was chosen at random, each error would increase the guesses needed by at least 20X (concretely, by the prime for that day). Going from 10 guesses to 200 guesses for one error seems too steep for me.

Instead of choosing an error at random, I will add 1, subtract 1, or add 2 if there is an error that day.

This way, you will expect to need 3^(num_errors) * 10 guesses, if you somehow knew which days were error days.

Also, you all get a micro hint. Your hint is that my girlfriend's number, before the mod by 28M, looks very human-generated to me, for whatever that's worth.

Please let me know if you feel this is an unfair update, I will do my best to reimburse the 5 current holders if needed; I think it's worth it to make the market more balanced.

I asked my girlfriend questions to generate a 9 digit number.

What were these questions? What is the probability distribution of the numbers?

@jatloe Sorry, the most you'll get about that is the micro-hint above :P I already forgot the questions I asked.