Does anyone know where the saying "seven" comes from?

Question

I know a group of people that answer "seven" to everything when asked a question pertaining to a number, has anyone ever heard this before? Do you know where it comes from? I have asked them, they won't give it up.

Answer 1

its an inside joke of that group. dont worry about it.

Answer 2

Seven is considered a "good" or lucky number. People say that (when they don't know the answer) because 7 can be an answer for most generalized questions.

In Math alone, see the results of seven from wikipedia:

Seven is the fourth prime number.
Seven is a Mersenne prime, since 23 - 1 = 7.
Seven is the fourth Mersenne prime exponent.
Seven is the first Newman-Shanks-Williams prime.
Seven is the third Lucas prime.
Seven is the first Woodall prime.
Seven is the second lucky prime.
Seven is the second safe prime.
Seven is the fourth factorial prime
Seven is both a Carol number and a Kynea number.
Seven is the smallest number that can't be represented as a sum of fewer than four nonzero squares.
Seven is a self number.
Seven is the smallest happy number, except for the trivial example of 1.
Although the divisible by seven (7) test is not well known (especially compared to the popular divisible by three (3) test), there is an easy way to test if a natural number is evenly divisible by seven (7). See also Divisibility rule.
Remove the last digit,
Double it, and
Subtract it from the remaining digits.
If the result is negative and there are 2 or more digits, drop the negative sign.
Repeat until you end up with a result that is a multiple of seven (7). (i.e. -7, 0, or +7)
For example, the number 1358 is evenly divisible by seven, since:
135 - (8*2) = 119
11 - (9*2) = -7
Using Number Theory the proof is rather easy, once we rewrite the number n in the form:
n = 10a + b
Where:
a is the remaining digits, and
b is the last digit.
Then:
10a + b = 0 (mod 7)
5 * (10a + b) = 0 (mod 7)
49a + a + 5b = 0 (mod 7)
a + 5b - 7b = 0 (mod 7)
a - 2b = 0 (mod 7)
999,999 divided by 7 is exactly 142,857, so vulgar fractions with 7 in the denominator have six-digit repeating sequences in their decimal expansions. 1/7 = 0.142857142....
A seven-sided polygon is a heptagon. The regular n-gons for n ≤ 6 can be constructed by compass and straightedge alone, but the regular heptagon cannot. Figurate numbers representing heptagons (including seven) are called heptagonal numbers. Seven is also a centered hexagonal number.
There are seven frieze groups, the groups consisting of symmetries of the plane whose group of translations is isomorphic to the group of integers.
A group or a series of seven is a heptad.
7 is the only dimension, besides the familiar 3, in which a vector cross product can be defined.


HERE'S A LINK TO THE SITE.

Answer 3

I don't know where that comes from but my husband has told me about a time he was in high school and sleeping in class the teacher say he was sleeping and called on him for the answer to a question he lifted his head and said 7 and went back to sleep and by chance it was right. so he and his friends had this thing with 7 and every once in a while it will come back up and 7 will be around for a few months. oh well that's all it prob is. just ignore them. :-) happy holidays

Answer 4

It comes between the numbers 6 and 8. I'd just ignore that kind of immature behavior.

Answer 5

Well, seven is a favorite lucky number of many people. Maybe that's it. Otherwise, I don't know. It could be just an inside jokes of theirs...

Answer 6

Its probably a geek ritual. Never heard of it.

Answer 7

the number seven meas perfection but other than that dont know......

Answer 8

I think seven shouldn't even exist! Why you ask?







Beacause 7,8,9 Ha! I kill myself!

Answer 9

WHO CARES?
ONLY DWEEBS WOULD SAY SEVEN OVER EVERYTHING
HAS THE WHOLE WORLD GONE STUPID!!!!!?

Answer 10

dont worry about it...