Quaternary

The base-4 method of counting in which only the digits 0, 1, 2, and 3 are used. The illustration above shows the numbers 0 to 63 represented in quaternary, and the following table gives the quaternary equivalents of the first few decimal numbers.

1	1	11	23	21	111
2	2	12	30	22	112
3	3	13	31	23	113
4	10	14	32	24	120
5	11	15	33	25	121
6	12	16	100	26	122
7	13	17	101	27	123
8	20	18	102	28	130
9	21	19	103	29	131
10	22	20	110	30	132

These digits have the following multiplication table.

	1	2	3
0	0	0	0
1	1	2	3
2	2	10	12
3	3	12	21

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More things to try:

quaternary
12 in base 4
3221 in base 4 to decimal

References

Lauwerier, H. Fractals: Endlessly Repeated Geometric Figures. Princeton, NJ: Princeton University Press, pp. 9-10, 1991.

Referenced on Wolfram|Alpha

Quaternary

Cite this as:

Weisstein, Eric W. "Quaternary." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Quaternary.html

Quaternary

See also

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References

Referenced on Wolfram|Alpha

Cite this as:

Subject classifications

1	1	11	23	21	111
2	2	12	30	22	112
3	3	13	31	23	113
4	10	14	32	24	120
5	11	15	33	25	121
6	12	16	100	26	122
7	13	17	101	27	123
8	20	18	102	28	130
9	21	19	103	29	131
10	22	20	110	30	132

1	1	11	23	21	111
2	2	12	30	22	112
3	3	13	31	23	113
4	10	14	32	24	120
5	11	15	33	25	121
6	12	16	100	26	122
7	13	17	101	27	123
8	20	18	102	28	130
9	21	19	103	29	131
10	22	20	110	30	132

1	1	11	23	21	111
2	2	12	30	22	112
3	3	13	31	23	113
4	10	14	32	24	120
5	11	15	33	25	121
6	12	16	100	26	122
7	13	17	101	27	123
8	20	18	102	28	130
9	21	19	103	29	131
10	22	20	110	30	132