Thanks for that, I didn't even consider that it wouldn't be in lowest form.

It's really clever to take advantage of the fact that powers of five always end with five, I suppose then it's better to divide out the powers of two first than the powers of five. Tomorrow I will ++ both of these :D

In reply to Re^3: Determining if a rational number terminates by blackle
in thread Determining if a rational number terminates by blackle

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