Odd Number Puzzle

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Can you find the odd number in the following?

2716, 4135, 5321 and 7145

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  • 1 Answer(s)

    2+7+1+6 = 16
    4+1+3+5 = 13
    5+3+2+1 = 11
    7+1+4+5 = 17

    Except 2716.. numbers for all others add up to prime numbers.. Hence 2716 is the odd one out!

    bhola99 Expert Answered on 12th February 2022.
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