Why else might that be important??  Used as simple sieves...........just 2 and 5.......cut out 60% of the entire number line from being prime...........in fact...........the most ANY ten digit sequence can have as primes............from 0 to zero........................0 to 0........is only 4 primes.........EVER.........even in single digits that hold true........................................2, 3, 5, 7 ......................of course for double digits and above the simple sieves of 2 and 5.........cut out 60% of the entire number line from being prime ever..........maybe it is a coincidence that there are only 4 primes in the single digits......................2 cuts out every even number.................from ever being prime............5 cuts out the middle.........the overlap at any number ending in zero................big clues.....


4 out of any ten digit sequence..............................4 out of 10............seems like 14........like 1/2 + 14i.......................................and the primes in the 1st double digit sequence.......from a zero to a zero..............end in exactly the only digits a prime can ever end in above 11........................11, 13, 17, 19.........a prime can only end in a 1, a 3, a 7 or a 9 above 10....................why............any even number is eliminated by 2.............5 is eliminated by 5.........leaving only 1, 3, 7 and 9..............as possible endings for a prime..................................so at max...........EVER....................only 4 out of 10 can be prime....................................................................

The first 1000 primes - UTM.edu

https://primes.utm.edu/lists/small/1000.txt

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The First 1,000 Primes (the 1,000th is 7919) For more information on primes see http://primes.utm.edu/ 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 ...

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