# Calculate nothing

This is a mobile friendly puzzle:

Unless pure nuns use pulse
917    655  1901 104 614


=> Calculate NULL

• I even created this puzzle completely on my smartphone :) Commented Jul 17, 2023 at 18:23
• Are there rot13(fhccbfrq gb or cnggreaf orgjrra gur jbeqf, be vf guvf shapgvba cheryl qrcraqrag ba gur jbeqf gurzfryirf? Orpnhfr V tbg gur vzcerffvba gung gur jbeqf pbhyq pbeerfcbaq gb n pelcgvp pyhr)... Commented Jul 17, 2023 at 19:24
• @newQOpenWid, there is no cryptic clue. Just thought it would be nicer to put the words in a sentence. Commented Jul 18, 2023 at 8:20
• Been a while, but is this related to conversions between bases? I tried converting between base 10 and base 7 and back, but I didn't get any progress... Commented Jul 20, 2023 at 22:35
• not at all, it is something completely different. Commented Jul 20, 2023 at 22:54

a cipher for Roman numerals: selrupn = IVXLCDM.
unless pure nuns use pulse
CMXVII DCLV MCMI CIV DCXIV
917 655 1901 104 614
So null = MCXX = 1120.