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Prime Numbers

Directions: Use the digits 1 to 9, at most one time each, to make 5 prime numbers.

Hint

Hint

What numbers should not go in the one’s place?
What are the single digit prime numbers?

Answer

Answer

Number of Unique Solutions: 8
1:  2, 41, 53, 67, 89
2:  2, 41, 59, 67, 83
3:  2, 47, 53, 61, 89
4:  2, 47, 59, 61, 83
5:  5, 23, 41, 67, 89
6:  5, 23, 47, 61, 89
7:  5, 29, 41, 67, 83
8:  5, 29, 47, 61, 83

Source: Owen Kaplinsky

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9 comments

  1. 7,17,13,37,47

  2. 5, 61, 23, 47, 89

  3. 3, 11, 13, 17, and 19 are all prime.

  4. 7 17 13 37 47

  5. 7, 17, 13, 19, 37.

  6. 0,23,41,57,89

  7. 7,56,83,41,29

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