Prime numbers whose neighboring pairs are tetraprimes: Difference between revisions
Prime numbers whose neighboring pairs are tetraprimes (view source)
Revision as of 12:14, 23 June 2023
, 10 months agoChanged average to median.
(Created a new draft task and added a Wren example.) |
(Changed average to median.) |
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3. Of the primes in 1 and 2 above how many have a neighboring pair one of whose members has a prime factor of 7?
4. For the primes in 1 and 2 above, consider the gaps between consecutive primes. What are the minimum,
5. Repeat these calculations for all primes less than '''1 million''' but for 1 and 2 just show the number of primes - don't print them out individually.
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for (k in 0...tetras.count-1) gaps[k] = tetras[k+1] - tetras[k]
var min = Nums.min(gaps)
var avg = Nums.mean(gaps).round▼
var max = Nums.max(gaps)
Fmt.print("Minimum gap between those $,d primes : $,d", c, min)
Fmt.print("Average gap between those $,d primes : $,d", c, avg)
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Minimum gap between those 49 primes : 56
Maximum gap between those 49 primes : 6,460
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Minimum gap between those 46 primes : 112
Maximum gap between those 46 primes : 10,284
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Minimum gap between those 885 primes : 4
Maximum gap between those 885 primes : 7,712
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Minimum gap between those 866 primes : 4
Maximum gap between those 866 primes : 10,284
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Minimum gap between those 10,815 primes : 4
Maximum gap between those 10,815 primes : 9,352
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Minimum gap between those 10,551 primes : 4
Maximum gap between those 10,551 primes : 10,284
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