Question by Summer Clouds - Discuss with MathYouLike

Summer Clouds moderators

27/11/2017 at 10:27

Consider the set of all possible two-digit numbers that can be created using an unlimited supply of 1s, 3s, 7s and 9s. What is the greatest absolute difference between any two primes in this set?

List of answers

Vũ Mạnh Hùng 28/11/2017 at 18:22

=86 mình nha
Phan Thanh Tinh Coordinator 28/11/2017 at 11:56

The difference between the largest element and the smallest element í the greatest difference. The largest element is 97 and the smallest element is 11. The answer is : 97 - 11 = 86

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