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Enigma Number 1536

List of primes

Use each of the digits 0 to 9 exactly twice to make a list of prime numbers. Your primes must all be different, and their sum must be as small as possible. Neither 0 nor 1 is a prime, and 0 may not be a leading digit.

What is the sum of the prime numbers in your list?

WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 15 April. The Editor’s decision is final. Please send entries to Enigma 1536, ¿ìè¶ÌÊÓÆµ, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).

Answer to 1530 Tom Daley: The 5-digit number represented by DALEY is 10348

The winner John Laurenson of Wellington, New Zealand

Topics: prime numbers

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