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Template:Sequence of the Day for February 22

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Intended for: February 22, 2012

Timetable

  • First draft entered by Alonso del Arte on November 25, 2011
  • Draft reviewed by Daniel Forgues on February 22, 2016
  • Draft to be approved by January 22, 2012

Yesterday's SOTD * Tomorrow's SOTD

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A008604: Multiples of 22.

{ 22, 44, 66, 88, 110, 132, 154, ... }

An even number that is divisible by 22 is obviously divisible by 11. (In base 10, a number is divisible by 11 if and only if the sum of “digits” in base 100 is divisible by 11, e.g. 1 + 10 = 11, 1 + 32 = 33, 1 + 54 = 55, ..., 2 + 14 + 94 = 110 implies that 110, 132, 154, ..., 21494 are divisible by 11.)