After a small hiatus again here's a post on Prime numbers... No better place to start than my Alma Mater - Pilani Pin Code - 333031!!!
333031 is a prime number and I decided to look at its reverse 130333 which has 7, 43, 433 as factors
So I thought of looking at prime numbers around 333031
Listed below the prime numbers starting 333019 till 333049 as a sample
333019 – Prime, 910333 – 17, 53549
333031 is a prime number and I decided to look at its reverse 130333 which has 7, 43, 433 as factors
So I thought of looking at prime numbers around 333031
Listed below the prime numbers starting 333019 till 333049 as a sample
333019 – Prime, 910333 – 17, 53549
333023 – Prime, 320333 – 13, 41, 601
333029 – Prime, 920333 - Prime
333031 – Prime, 130333 – 7, 43, 433
333041 – Prime, 140333 - Prime
333049 – Prime, 940333 – 373, 2521
When I look at the factors of the numbers which are reverse of the original number, I see that either they are prime or have factors which are prime themselves!!!
Now that Pilani gave me some good for thought to start off on a Saturday morning, I started looking at the 4 digit numbers in random... Take a look below
1913 - Prime, 3191 - Prime
1747 - Prime, 7471 - 31, 241
3041 - Prime, 1403 - 23, 61
3371 - Prime, 1733 - Prime
3863 - Prime, 3683 - 29, 127
5981 - Prime, 1895 - 5, 379
7879 - Prime, 9787 - Prime
Isn't that wonderful to see?
Needless to say if the original number starts with 2, 4, 6, 8 (or sometimes even 5), the number in reverse may not exhibit this pattern always
Some interesting facts and puzzles about Prime Numbers and Magic Squares, Smith Numbers, and Arithmetic and Palindromic Primes on this blog: www.glennwestmore.com.au.
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