Number Literal « Number « Ruby

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Ruby » Number » Number Literal 
1.Make number easier to read by using underscores every three digits from the right
2.Create floating-point numbers simply by using a decimal point
3.Create an exponent
4.Create binary numbers by prefacing them with 0b
5.Create octal number - base eight - numbers by prefacing them with a 0
6.create hexadecimal numbers - base 16 - by prefacing them with 0x
7.Add commas to a big integer value
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