Doesn't understand the distance reading on my Elliptical

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So I just started using my elliptical again and I have no idea how to interpret the distance setting. It just says a bunch of numbers. It doesn't tell me miles or KM, nothing. It will just like 25984 after a 30 minute workout. What does that mean? Does anybody know?? The brand of elliptical is IMAGE and I've had it for about 4 years now, maybe even longer. I would just like to be able to tell how many miles I put in on the thing. Thanks in advance!

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