# A, B, C, and D represent different digits. AACA, ADDD, BCDB, and BDAC represent four different four-digit pri

### 2 Answers

Relevance

- Doc OccamLv 71 decade agoFavorite Answer
Prime numbers, perhaps?

Then all four must be odd, since no even number greater than 2 is prime. And none of them can be 5, because any number ending in 5 has 5 as a factor. So they are 1, 3, 7, 9.

- Login to reply the answers

- Dr DLv 71 decade ago
The first answerer is right. In addition it turns out to be 1,3,7,9 in that order.

ie A=1, B=3, C=7, D=9

- Login to reply the answers

Still have questions? Get your answers by asking now.