A whole number is either composite, with factors other than itself & 1, or this type
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Prime and Composite Numbers  Why 30 days in some months, 31 days in others, and let's not forget February and ... YOU ALWAYS WANTED TO KNOW ABOUT WHOLE NUMBERS BUT WERE ... IF A NUMBER IS PRIME IS IF IT HAS ONLY TWO FACTORS, 1 AND ITSELF.
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Interactive Mathematics Dictionary - Factor Definitions - InterMath  Composite Number - A number that has factors other than itself and 1; ... Prime Number - A whole number greater than 1 which has exactly two ... Graph the function and look at the graph for values that are close to 0, but on either side of 0.
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Primes and Composites - SoftSchools  1 is not prime or composite. It only has 1 factor -- itself! You could say that 1 is the loneliest number. It does not fit in either category. It does not have exactly two...
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Prime and Composite Numbers - Math is Fun  But 6 can be divided evenly by 1, 2, 3 and 6 so it is NOT a prime number (it is a composite number). Let me explain . ... Any whole number greater than 1 is either Prime or Composite ... Factors other than 1 or the number itself are highlighted:...
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NumberNut.com: Fractions and Decimals: Number Types: Prime and ...  This tutorial introduces prime and composite numbers. Sections include fractions, decimals, number types, money, ratios, and factors. ... is a number that can only be divided by one and itself with no remainder. ... That means no fractions either. ... You could say that two whole numbers other than 1 and 14 can be multiplied...
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Mixture of two or more metals - Answers.com  An alloy.
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Representation of numbers - Swarthmore College  Introduction (the decimal number system); Binary representation of positive ... When working with any kind of digital electronics in which numbers are .... 12, C, 1100 ... less commonly than it once was (early DEC computers used octal for much of ... a binary number is changed by simply toggling each bit (0's become 1's and...
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Algebra - eMathematics.net  Integers can be whole numbers or they can be whole numbers with a negative signs in front of ... I'll leave it that complex numbers are real and imaginary. ... Classify the following numbers as rational, irrational, natural, whole and/or integer.
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Perfect numbers  A perfect number is defined to be one which is equal to the sum of its aliquot parts. The four perfect numbers 6, 28, 496 and 8128 seem to have been known from ancient times ... 28 = 1 + 2 + 4 + 7 + 14, ... To illustrate this Proposition consider 1 + 2 + 4 = 7 which is prime. ... All of these are given without any attempt at a proof.
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Prime Numbers - Facts, Examples, & Table Of All Up To 1,000  The only even prime number is 2. All other even numbers can be divided by 2. If the sum of a number's digits is a multiple of 3, that number can be divided by 3. No prime number greater than 5 ends in a 5.
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Rational Numbers  number: Terminating decimal: Repeating decimal: A decimal that has one or ... Show that the number is rational by writing it as a quotient of two ... Example 1.
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Why 1 Isn't Prime, 2 Is Prime, and 2 Is the Only Even Prime
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Perfect number - Wikipedia  In number theory, a perfect number is a positive integer that is equal to the sum of its proper ... Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself) i.e. 1(n) ... The next perfect number is 28 = 1 + 2 + 4 + 7 + 14. ... For 2p  1 to be prime, it is necessary that p itself be prime.
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Multiplying and Dividing Fractions  ... and Mixed Numbers.  Dividing Fractions and Mixed Numbers ... 5. Example. 3. 4. The 3 is how many: Numerator. The 4 is how big  how many equal parts: Denominator ... Also, what times 0 = 6???? For .... 100 is not a factor of 10!!!  What...
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Types of Numbers - Math Goodies  Have you ever wondered what our lives would be like without these 10 elegant digits ... 1, 2, 3, 4, 5, 6, 7, 8, and 9, used to create numbers in the base 10 decimal number system. .... Abundant numbers are numbers where the sum, Sa(N), of its aliquot .... Multiplying the sides of the primitive right triangle 12-35-37 by 18 yields...
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How to Divide Fractions by a Whole Number: 7 Steps  To divide a fraction by a whole number, all you have to do is to convert the ... the same as saying 4, since you're just showing that the number includes "1" 4 times. ... Turn the mixed number into a improper fraction (5/4, 10/3) And multiply that...
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Mathematical mysteries: the Goldbach conjecture | plus.maths.org  Can every even whole number greater than 2 be written as the sum of two primes? A prime is a whole number which is only divisible by 1 and itself. ... enormous gap and proved that the result is true for all odd numbers greater than 5. ... the strong Goldbach conjecture is to say that every integer n is the average of two odd...
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What's Special About This Number? - Stetson University  If you know a distinctive fact about a number not listed here, please e-mail me. ... 24 is the largest number divisible by all numbers less than its square root. 25 is the smallest square that can be ... 27 is the largest number that is the sum of the digits of its cube. 28 is the 2nd ... 64 is the smallest number with 7 divisors. 65 is the...
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What Will Happen Without Decimal Expansion? - Mathematics Stack ...  Feb 18, 2014 ... In the rationals, Q , every non-zero quantity is invertible. Any fraction can be expressed as a finite or infinite repeating decimal. Thus 1.5 has as...
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Number Theory - UCLA  A number that has as factors only itself and one is called prime. ... He says: We might ask, does (this) have any solution in positive integers ... In 1742 Goldbach conjectured that every even integer greater than 2 is the sum of two primes. ... for all even numbers less than 100,000 but no one has been able to prove it [2, p. 5].
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Common Factors - Fact Monster  Factors that two numbers have in common are called the common factors of those numbers. Example: What are the common factors of 20 and 25? The factors of 20 are 1, 2, 4, 5, and 20. ... The common factors of 15 and 30 are 1, 3, 5, and 15. ... the factorsprime or notto find the single highest one they have in common,...