# MAGIC numbers: BIG NUMBERS

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- 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: 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...

- The world of MATHS: LOGIC. // Think of a Number;2005, p82
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on the branch of mathematics called logic. Logic relies on thought rather than numbers or shapes. Solving a problem logically means deducing certain things and then linking the...

- Where do NUMBERS come from?: Nothing really MATTERS. // Think of a Number;2005, p22
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the concept of zero. It argues that zero does not always mean nothing and that if zero is placed on the end of a number, it is multiplied by ten because of the place system, wherein...

- MAGIC numbers: Nature's NUMBERS. // Think of a Number;2005, p32
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers"is presented. It elaborates on the Fibonacci number discovered by Leonardo Fibonannci of Pisa, Italy. It notes that the number of floral petals, as well as the number spirals of the coneflower, is a number...

- 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?: You can count on PEOPLE. // Think of a Number;2005, p12
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It tackles the 900 different counting systems adopted by tribes in Papua New Guinea as well as that of the ancient Babylonians. It notes that many of these tribes count past their fingers and do...

- 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?: 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...