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-   -   Number sequence help? (https://www.askmehelpdesk.com/showthread.php?t=557692)

  • Feb 25, 2011, 12:37 AM
    iamankur
    Number sequence help?
    5, 16, 29, 46, 65, 88... what's next
    Options are 315, 117, 119, 121
  • Feb 25, 2011, 03:56 AM
    galactus

    Take the difference between the numbers.

    16-5=11
    29-16=13
    46-29=17
    65-46=19
    88-65=23

    See? The differences are prime numbers. What's the next prime after 23? Add that to 88 to get the next number.
  • Feb 25, 2011, 09:38 PM
    iamankur
    Thanks galactus

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