The Cistercian numerals are а forgotten number system, developed the Cistercian monastic order in the early thirteenth century, much more compact than Arabic or Roman numerals: with a single character

The Cistercian numerals are а forgotten number
system, developed the Cistercian monastic order
in the early thirteenth century, much more compact
than Arabic or Roman numerals: with a single
character you could write any integer from 1 to 9999
[more
14
10
20
30
40
50
60
70
80
100 200 300 400 500 600 700 800 900
1000 2000 3000 4000 5000 6000 7000 8000 9000
1993 4723 6859 7085 9433