You must Sign In to post a response.
  • Category: Quiz & Puzzles

    Can you solve Collatz Conjecture? Those who don't like jokes must try

    In Mathematics, there are many problems which are unsolved mysteries. Some of these problems are more than 200 years old. Generations of mathematicians have been trying unsuccessfully to solve these mysteries.

    Some of such unsolved mathematical problems are:
    (a) Riemann Hypothesis
    (b) P vs. NP Problem
    (c) Goldbach Conjecture
    (d) Collatz Conjecture
    (e) Twin Prime Conjecture
    (f) Navier-Stokes Existence and Smoothness
    (g) Birch and Swinnerton-Dyer Conjecture

    Out of these mysteries let us take Collatz Conjecture. The Collatz Conjecture was proposed by Lothar Collatz in 1937 and it is deceptively simple.

    Let us take any positive whole number: If the number is even, divide it by 2. If the number is odd, multiply it by 3 and add 1.

    Then, repeat the process with the result.

    The conjecture states that no matter what number you start with, you will eventually reach the number 1.

    Let me give an example. Let us take a random number 6. Divide it by 2, you will get 3. So, you will multiply 3 with 3 and add 1. You will get 10. Divide it by 2, you will get 5. Again multiply 5 with 3 and add 1. You get 16. Divide it by 2. You will get 8. Then repeat the process. Ultimately, you will get 1.

    Despite its simplicity, the Collatz Conjecture is incredibly hard to prove. Mathematician Paul Erdos famously said, "Mathematics is not yet ready for such problems." While it is very easy to check for specific cases using computers, a general proof for every possible number has not been possible till now.

    Serious members of ISC, will you give this Conjecture a try and provide a general proof to establish it?
  • #782499
    If we continue we will get it in three steps. Divide 8 by 2 will get 4 and then divide 4 by 2 will get 2 and again divide 2 by 2 will get 1.

    PS: I am not a serious person and being a part of humourist but still interested in mathematics and hence tried.

    Thank you for the list of mathematicians and their problems.

    shasthranaam Ganitham moordhanisthitham

  • #782502
    Sarojah Madam: Your response is correct for this particular number, i.e. 6.

    But, Collatz Conjecture has been found correct for any positive whole number.

    The mathematicians of the world want a general mathematical proof to state that Collatz Conjecture is correct for all positive whole numbers. If that is proved mathematically, no one will call it a 'conjecture', it will be called 'Collatz Rule'.

    Further, yesterday I posted a simple hilarious joke, which was brutally and mercilessly deleted. So, I have decided to be extremely boring. I will post unsolved mathematical mysteries in future on this educational site. I hope the perpetually serious members and editors will be happy to attempt to solve complex mathematical problems.

    In this way, I will also be able to remind myself that once upon a time, I studied higher mathematics in the oldest (modern-age) university in India.

    (a) Those who have forgotten Noakhali, how can they protest Sandeshkhali?
    (b) Have no fear of perfection - you'll never reach it. ---------- Salvador Dali

  • #782503
    Yes there are mysteries higher level mathematical researchers are continuously doing their research like that even our own Srinivasa Ramanujams unsolved theories are in plenty. One such thing is recently invented ATM pin on that basis only I heard. So let us pray at least in our life time somebody come with a proof.
    shasthranaam Ganitham moordhanisthitham

  • #782507
    Good. I take number 9. Multiply the same with 3 and then add one it will be 28. Divide with 2. The answer will be 14. Divide with 2 again. The answer will be 7. multiply with 3 and add 1. The number is 22. Again divide with 2. We will get 11. Then multiply by 3 and add 1. 34 will be the answer. Then divide with 2. The answer will be 17, Multiply with 3 and add 1. 52 is the number we will get. Divide by 2 and you will be left with 26. Again divide it by 2 and the number will be 13, By repeating the process of multiplying by 3 and adding one, we will arrive at 40. Then divide it by 2 again by two and again by 2. We will arrive at 5. Then, multiply the same by 3 and add 1. 16 is the outcome. Divide it with 2. 8 is the answer. Divide with 2. 4 will be the answer. Then divide with 2 and again with 2. The final answer will be 1.
    drrao
    always confident

  • #782512
    Till now, no member has attempted to provide a mathematical proof to establish this conjecture.
    (a) Those who have forgotten Noakhali, how can they protest Sandeshkhali?
    (b) Have no fear of perfection - you'll never reach it. ---------- Salvador Dali


  • Sign In to post your comments