Which one is the right way in roman numerals?

by Rasse5l

So i need to write 46900 in roman numerals. Which one would be correct? I'm writing with my phone now so Capitols are meant to be numerals with line above them. Small letters mean just normal ones. XLVIcm or XLVmcm ?

Even if those both mean the same number, is there any formal differences?

Thanks already!

  • R
reslumina

XLVIcm looks right to me, if you're using vinculum.