Perfect numbers Mathematicians have been fascinated for millenniums by the properties and patterns of numbers. They have noticed that some numbers are equal to the sum of all of their factors (not including the number itself). Such numbers are called perfect numbers. A perfect number is a whole number‚ an integer greater than zero and is the sum of its proper positive devisors‚ that is‚ the sum of the positive divisors excluding the number itself. Equivalently‚ a perfect number is a number that is
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------------------------------------------------- 1 (number) 1 | −1 0 1 2 3 4 5 6 7 8 9 →List of numbers — Integers0 10 20 30 40 50 60 70 80 90 → | Cardinal | 1 one | Ordinal | 1st first | Numeral system | unary | Factorization | | Divisors | 1 | Greek numeral | α’ | Roman numeral | I | Roman numeral (Unicode) | Ⅰ‚ ⅰ | Persian | ١ - یک | Arabic | ١ | Ge’ez | ፩ | Bengali | ১ | Chinese numeral | 一，弌，壹 | Korean | 일‚ 하나 | Devanāgarī | १ | Telugu | ೧ | Tamil |
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The Number Devil The Number Devil - A Mathematical Adventure‚ by Hans Magnus Enzensberger‚ begins with a young boy named Robert who suffers from reoccurring nightmares. Whether he’s getting slurped up by a giant fish‚ sliding down an endless slide into a black hole‚ or falling into a raging river‚ his incredibly detailed dreams always seem to have a negative effect on him. Robert’s nightmares either frighten him‚ make him angry‚ or disappoint him. His one wish is to never dream again; however‚
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Does the Canadian Prime Minister have too much power and what can be done about it? For: Dr. D. Brown Political Science 221 11/18/2013 By: Luke Baxter | ID: 201005340 Second to the Governor General of Canada‚ the position of the Canadian Prime Minister is the single highest power a public servant can obtain. The residual power that the Governor General holds under the monarchy of Britain gives the Governor General the ultimate and final say
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themselves in the world of math. The Professor’s favorite concept‚ prime numbers‚ seems to impact the Housekeeper the most. She takes her “cue from the Professor” (113) and makes a habit of carrying a pencil and notebook around so that she can quickly do calculations to figure out if any number she sees is prime. While cleaning at another family’s home‚ she can’t help but to explore the numbers in every place‚ including the serial number engraved on a refrigerator. Much like the way the Professor pulled
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REAL NUMBERS Q.1 Determine the prime factorization of the number 556920. (1 Mark) (Ans) 23 x 32 x 5 x 7 x 13 x 17 Explanation : Using the Prime factorization‚ we have 556920 = 2 x 2 x 2 x 3 x 3 x 5 x 7 x 13 x 17 = 23 x 32 x 5 x 7 x 13 x 17 Q.2 Use Euclid’s division algorithm to find the HCF of 210 and 55. (1 Mark) (Ans) 5 Explanation: 5 ‚ Given integers are 210 and 55 such that 210 > 55. Applying Euclid’s division leema to 210 and 55‚ we get 210 = 55 x 3 + 45 ………
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----------------------------------------------------------------------------------1. What are the total number of divisors of 600(including 1 and 600)? a. b. c. d. 24 40 16 20 2. What is the sum of the squares of the first 20 natural numbers (1 to 20)? a. b. c. d. 2870 2000 5650 44100 3. What is∑ items? a. b. c. d. ( )‚ where is the number of ways of choosing k items from 28 ) where is the number of ways of choosing k items from 28 406 * 306 * 28 * 56 * 4. What is ∑
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Name Chapter 2‚ Lesson 1 Practice Date Hands On: Compare and Order Whole Numbers CA Standard NS 1.2 Use > or < to compare the numbers. Make a number line on a separate sheet of paper to help. 1. 4‚351 4. 119‚832 7. 9‚889 4‚315 2. 8‚998 5. 745‚271 8. 911‚238 60‚060 6‚600 30‚298 75‚271 30‚302 3. 69‚780 6. 598‚401 9. 14‚501 96‚870 589‚410 13‚799 Test Practice Circle the letter of the correct answer. 10.
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Pi has always been an interesting concept to me. A number that is infinitely being calculated seems almost unbelievable. This number has perplexed many for years and years‚ yet it is such an essential part of many peoples lives. It has become such a popular phenomenon that there is even a day named after it‚ March 14th (3/14) of every year! It is used to find the area or perimeter of circles‚ and used in our every day lives. Pi is used in things such as engineering and physics‚ to the ripples created
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_____________Download from www.JbigDeaL.com Powered By © JbigDeaL____________ NUMERICAL APTITUDE QUESTIONS 1 (95.6x 910.3) ÷ 92.56256 = 9? (A) 13.14 (B) 12.96 (C) 12.43 (D) 13.34 (E) None of these 2. (4 86%of 6500) ÷ 36 =? (A) 867.8 (B) 792.31 (C) 877.5 (D) 799.83 (E) None of these 3. (12.11)2 + (?)2 = 732.2921 (A)20.2 (B) 24.2 (C)23.1 (D) 19.2 (E) None of these 4.576÷ ? x114=8208 (A)8 (B)7 (C)6 (D)9 (E) None of these 5. (1024—263—233)÷(986—764— 156) =? (A)9 (B)6
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