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What needs to be added to the sum of the first three prime numbers to equal the fifth?

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What needs to be added to the sum of the first three prime numbers to equal the fifth?
posted Jan 4, 2016 by Brijesh Talwar

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1 Answer

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1 Needs to be added. Sum of first 3 Prime Nos = 2+3+5 = 10.
7 is the fourth Prime No and 11 is the fifth.

So 10+1 = 11. Hence 1 needs to be added.

answer Feb 11, 2016 by Nivedita



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