Well... uh, 10 + 18x > 5x^3... I don't know how to solve depressed cubics, alas, but we can just substitute integers in until it works. And it does for 2 but not 3! So if we were working in a weird, warped Base 2 in which we could use any digits, you'd be correct.
Oh, and here's 96, bringing with it approximately a zillion factors.