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Twin primes are pairs of natural numbers(P1 and P2) that satisfy the following: |
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# P1 and P2 are primes |
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# P1 + 2 = P2 |
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Write a program that displays the number of twin primes that can be found under a user-inputted number. |
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Examples below: |
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{{out}} |
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<pre> |
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> Search Size: 100 |
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> 8 twin prime pairs. |
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</pre> |
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<pre> |
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> Search Size: 1000 |
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> 35 twin prime pairs. |
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</pre> |
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