# UVa 10168

Jump to navigation
Jump to search

## 10168 - Summation of Four Primes[edit]

## Summary[edit]

Can you express a number as a summation of four primes?

## Explanation[edit]

Here I assume that you know about Goldbach's Conjecture. Think about it for a while and you should see that every is decomposible into sum of 4 primes.

## Input[edit]

7 8 9 1234567

## Output[edit]

Impossible. 2 2 2 2 2 2 2 3 2 3 19 1234543