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Use all digits 1 to 9 to make six primes summing 207

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Tuesday 20 January 2009 04:36

I have before me six different prime numbers that sum to a total of 207. These six primes have been formed using all nine digits from 1 to 9, once each.

The total of 207 is the smallest possible in these conditions, according to established theory. Can you discover the six primes involved?

Don't forget the number 1 is not considered prime in maths jargon.

Of course you might start in minimalist fashion with 2, 3, 5, 7, 19, but then with only 4, 6 and 8 left, that would be the end of that attempt!

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