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Answer needed fast! 15 points! in how many ways can 85 be written as the sum of 2 primes

Answer needed fast! 15 points! in how many ways can 85 be written as the sum of 2 primes
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Answer needed fast! 15 points! in how many ways can 85 be written as the sum of 2 primes

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User Bruno Cunha
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1 Answer

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85 is odd, so is the sum of an odd number and an even number. So the only pair of (positive) prime numbers of which it can be the sum is 2 and 83 .
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User Suman Shadow
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