# Where do NUMBERS come from?: You can count on PEOPLE

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- Where do NUMBERS come from?: Making a mark. // Think of a Number;2005, p14
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the counting system devised by ancient Babylonians as they counted beyond their hands. It presents information on the clay tokens that they used as record of deals and how they kept...

- Where do NUMBERS come from?: How did counting begin? // Think of a Number;2005, p10
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It explores how the modern decimal system began. It argues that it is certain that people used their hands when they first started counting since most of them have ten fingers to count with and...

- Where do NUMBERS come from?: INDIAN numbers. // Think of a Number;2005, p20
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the counting system devised by the ancient Indians. It notes that the Indians were able to invent the place system wherein number symbols were matched with the rows on an abacus as...

- MAGIC numbers: SQUARE and Triangular NUMBERS. // Think of a Number;2005, p44
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the concept of square and triangular numbers. A square number is defined as the product of a number that is multiplied by itself. The square number series is said to be one of the...

- Where do NUMBERS come from?: Work like an Egyptian. // Think of a Number;2005, p16
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the measuring system devised by the ancient Egyptians based on the human body as well as the hieroglyphs or little pictures illustrating their counting system. It also elaborates on...

- Where do NUMBERS come from?: Mayan numbers Roman numbers. // Think of a Number;2005, p18
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the counting systems devised by the ancient Mayans and Romans. It asserts that Ancient Mayans were able to perfectly track the date and purports that they counted in twenties using...

- MAGIC numbers: the Golden RATIO. // Think of a Number;2005, p34
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the concept of phi which the famous painter Leonardo da Vinci called as the "golden ratio." It presents how it is derived and its numerical value. It also elaborates on the strange...

- MAGIC numbers: BIG NUMBERS. // Think of a Number;2005, p36
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses big numbers, what they are called, and how they are written. It mentions the concept of powers or exponents which indicates the number of times a number is to be multiplied by...

- MAGIC numbers: PRIME suspects. // Think of a Number;2005, p40
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It provides an analysis of prime numbers. It states that a prime number is defined as a whole number that cannot be divided into other whole numbers except for 1. Some mathematicians reportedly...