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Sep
16
comment Congruence modulo n where one side is equal to 1
OK thanks, I just found the terminology and formulation used in the book quite confusing.
Sep
16
accepted Congruence modulo n where one side is equal to 1
Sep
15
comment Congruence modulo n where one side is equal to 1
Let me quote the book: Two numbers are said to be congruent modulo n if they both have the same remainder when divided by n. The remainder of a number a when divided by n is also referred to as the remainder of a modulo n, or simply as a modulo n. So as far as I understood it, they're saying that $a^{n-1}$ and $1$ are congruent modulo $n$, which means that they have the same remainder when divided by $n$. So I'm not sure in your answer...
Sep
15
asked Congruence modulo n where one side is equal to 1
Jul
2
awarded  Curious
Jun
13
awarded  Nice Question
May
10
comment Can I keep adding more dimensions to complex numbers?
For R3 you simply define a number j that has the property j^3 =− 1. - isn't that -1?
Mar
14
comment Any natural number is greater than or equal to its product of digits.
@Hawk I misread the question as "lower than or equal to" - sorry!
Mar
14
comment Any natural number is greater than or equal to its product of digits.
I don't get this. If a number has 0 as a digit, wont its product of digits also be 0?
Dec
30
awarded  Notable Question
Dec
8
awarded  Notable Question
Sep
7
awarded  Popular Question
Mar
20
awarded  Popular Question
Feb
27
accepted Can true randomness come out of mathematical rules?
Feb
27
accepted Can I keep adding more dimensions to complex numbers?
Dec
5
awarded  Yearling
Oct
4
awarded  Nice Question
Sep
22
awarded  Editor
Sep
22
revised Can I keep adding more dimensions to complex numbers?
added 67 characters in body
Sep
22
comment Can I keep adding more dimensions to complex numbers?
How can you loose those? Wow, I really need to research into this...