5984 puzzle

Anyone need a nice number puzzle these days?


5984 is a factor in an interesting product. If you multiply 5984 by a certain four-digit number, ABCD, the product is BBAADDCC: The same four digits in the second number, but repeated in that pattern. Can you find the number?

Enjoy...

I’m plugging away at a third story, set mostly in a space station hovering over Saturn in the form of a “neo-Gothic” castle. I mean it to have a sense of doom and foreboding, like the first arrival in Dracula’s castle. The story’s mood is different from what I’ve attempted so far. I hope my other commitments will let me finish it this month, but ... time will tell.