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2006-07-18 11:14:00 · 18 answers · asked by <3 1 in Education & Reference Special Education

18 answers

count on ya fingers its 11

2006-07-18 13:49:34 · answer #1 · answered by bsktballchik 4 · 0 0

11 (eleven) is the natural number following 10 and preceding 12. Because eleven is the first number which cannot be represented by a human using his or her ten fingers, it is often considered a mysterious number. Eleven is the smallest positive integer requiring three syllables in English.

Eleven is the 5th smallest prime number. 11 is the fourth Sophie Germain prime, the third safe prime, the fourth Lucas prime, and the first repunit prime. Although it is necessary for n to be prime for 2n-1 to be a Mersenne prime, the converse is not true: 211 - 1 = 2047 which is 23 × 89. The next prime is 13, with which it comprises a twin prime. 11 is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Displayed on a calculator, 11 is a strobogrammatic prime and a dihedral prime because it reads the same whether the calculator is turned upside down or reflected on a mirror, or both.

Because it has a reciprocal of unique period length among primes, 11 is the second unique prime. 11 goes into 99 exactly 9 times, so vulgar fractions with 11 in the denominator have two digit repeating sequences in their decimal expansions. Multiples of eleven by one-digit numbers all have double digits: 00 (=0), 11, 22, 33, 44 . . .

An eleven-sided polygon is called a hendecagon or undecagon.

In both base 6 and base 8, the smallest prime with a composite sum of digits is 11.

In base 10, there is a simple test to determine if an integer is divisible by 11: take every digit of the number located in odd position and add them up, then take the remaining digits and add them up. If the difference between the two sums is a multiple of 11, including 0, then the number is divisible by 11.

An easy way of multiplying numbers by 11 in base 10 is: If the number has:

1 digit - Replicate the digit (so 2 x 11 becomes 22).
2 digits - Add the 2 digits together and place the result in the middle (so 47 x 11 becomes 4 (11) 7=4 (1+10) 7=(4+1) 1 7=517).
In base thirteen and higher bases (such as hexadecimal), eleven is represented as B, where ten is A. In duodecimal, however, eleven is sometimes represented as E and ten as T.

Multiplied by −1, eleven is a Heegner number.

2006-07-18 18:58:13 · answer #2 · answered by Uzi900 2 · 0 0

11

2006-07-18 20:34:16 · answer #3 · answered by imreallymean 3 · 0 0

11

2006-07-18 18:52:53 · answer #4 · answered by Anonymous · 0 0

11

2006-07-18 18:17:51 · answer #5 · answered by *pakiman* 1 · 0 0

11

2006-07-18 18:17:46 · answer #6 · answered by Alicia 2 · 0 0

11?

2006-07-18 18:17:02 · answer #7 · answered by M 4 · 0 0

I think is 11 or 12 not sure use a calculator

2006-07-18 18:20:22 · answer #8 · answered by ivan_c 2 · 0 0

Your just being dumb. We all know you know the answer. You are really getting a kick out of this aren't you? And for your information it is 11.

2006-07-18 18:58:58 · answer #9 · answered by Anonymous · 0 0

lets try 56 because the obvious answer is 11 so you must want some other answer

2006-07-18 18:17:53 · answer #10 · answered by Kookie M 5 · 0 0

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