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Regular Number -- from Wolfram MathWorld

A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....



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Regular Number -- from Wolfram MathWorld

https://mathworld.wolfram.com/RegularNumber.html

A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....



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https://mathworld.wolfram.com/RegularNumber.html

Regular Number -- from Wolfram MathWorld

A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....

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      Regular Number -- from Wolfram MathWorld
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      Regular Number
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      A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....
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      A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....

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      Regular Number -- from Wolfram MathWorld
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      A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....

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      Regular Number -- from Wolfram MathWorld
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      A regular number, also called a finite decimal (Havil 2003, p. 25), is a positive number that has a finite decimal expansion. A number such as 1/3=0.33333... which is not regular is said to be nonregular. If r=p/q is a regular number, then r = (a_1)/(10)+(a_2)/(10^2)+...+(a_n)/(10^n) (1) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(10^n) (2) = (a_110^(n-1)+a_210^(n-2)+...+a_n)/(2^n·5^n). (3) Factoring possible common multiples gives r=p/(2^alpha5^beta), (4) where p≢0 (mod 2, 5)....
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