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Homework Statement NEED EXPLANATION HOW TO SOLVE QUESTIONS 46 AND 47 http://img685.imageshack.us/img685/2259/101020114327.jpg Uploaded with ImageShack.us Homework Equations The Attempt at a Solution

Oh sry my bad! it was -27 and not -17 lol, so yea: 28= -27(mod m) Thanks! :)

Homework Statement a question from a test in discrete math: find 3 positive numbers that are larger than 1, that 28=-17(mod m) Homework Equations which is 28 + 17/m = t so its 55/m = t can i say that m= 55,11,5 because they devise 55? thanks The Attempt at a Solution

10(10^2) + 12(10) + 3 = 1000+120+3= 1123 ??

Somebody?! :(

i see. so basically i can write it this way?? : (AC3)16 = (10123)10 3*10^0 + 2*10^1 + 1*10^2 + 0*10^3 + 1*10^4 ? Thanks

(1010100)10 ?

so basically its: (10123)16 ?? did i convert it correctly?

Homework Statement Convert (AC3)16 to base 10. I'm new to this kind of material. I would really appreciate your help for this one. Thanks, Roy Homework Equations The Attempt at a Solution

i don't see why it is divisible by 2, would you like to explain it please? much appreciated

Hey everyone I am new in this forum, and it looks great ! :) i have this problem to prove this question.id really appreciate our help for this one: Prove that for every positive integer n,there are n consecutive composite integers. Theres a the hint in the question that says; consider the n...