The Roman numeral of XXI is equivalent to 21
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XXI is the Roman numeral for 21.
If you mean MMXXI then it is the equivalent of 2021
It is: XXI = 21
The Roman numeral XXI represents the number 21
XXI. X = 10. XX = 20. I = 1, hence XXI
XXI
21 4
XXI
21
XXI = 21
CCCXXI = 321. Each C is 100, each X is 10, and the I is 1. Or, Can Cans Coap X-treme X-rays Inside?
if you mean XXI -- that is equal to 21