# 八进制

（重定向自八進制

1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 24 30 32 36 60 64

## 實數

### 分數

 十進制Prime factors of the base: 2, 5Prime factors of one below the base: 3Prime factors of one above the base: 11Other Prime factors: 7 13 17 19 23 29 31 八進制Prime factors of the base: 2Prime factors of one below the base: 7Prime factors of one above the base: 3Other Prime factors: 5 13 15 21 23 27 35 37 分數 分母 對比 對比 分母 分數 1/2 2 0.5 0.4 2 1/2 1/3 3 0.3333... = 0.3 0.2525... = 0.25 3 1/3 1/4 2 0.25 0.2 2 1/4 1/5 5 0.2 0.1463 5 1/5 1/6 2, 3 0.16 0.125 2, 3 1/6 1/7 7 0.142857 0.1 7 1/7 1/8 2 0.125 0.1 2 1/10 1/9 3 0.1 0.07 3 1/11 1/10 2, 5 0.1 0.06314 2, 5 1/12 1/11 11 0.09 0.0564272135 13 1/13 1/12 2, 3 0.083 0.052 2, 3 1/14 1/13 13 0.076923 0.0473 15 1/15 1/14 2, 7 0.0714285 0.04 2, 7 1/16 1/15 3, 5 0.06 0.0421 3, 5 1/17 1/16 2 0.0625 0.04 2 1/20 1/17 17 0.0588235294117647 0.03607417 21 1/21 1/18 2, 3 0.05 0.034 2, 3 1/22 1/19 19 0.052631578947368421 0.032745 23 1/23 1/20 2, 5 0.05 0.03146 2, 5 1/24 1/21 3, 7 0.047619 0.03 3, 7 1/25 1/22 2, 11 0.045 0.02721350564 2, 13 1/26 1/23 23 0.0434782608695652173913 0.02620544131 27 1/27 1/24 2, 3 0.0416 0.025 2, 3 1/30 1/25 5 0.04 0.02436560507534121727 5 1/31 1/26 2, 13 0.0384615 0.02354 2, 15 1/32 1/27 3 0.037 0.022755 3 1/33 1/28 2, 7 0.03571428 0.02 2, 7 1/34 1/29 29 0.0344827586206896551724137931 0.0215173454106475626043236713 35 1/35 1/30 2, 3, 5 0.03 0.02104 2, 3, 5 1/36 1/31 31 0.032258064516129 0.02041 37 1/37 1/32 2 0.03125 0.02 2 1/40

### 無理數

2 1.414213562373095048... 1.3240 4746 3177 1674...
3 1.732050807568877293... 1.5666 3656 4130 2312...
5 2.236067977499789696... 2.1706 7363 3457 7224...
φ 1.618033988749894848... 1.4743 3571 5627 7512...
π 3.141592653589793238462643
383279502884197169399375105...
3.1103 7552 4210 2643...
e 2.718281828459045235... 2.5576 0521 3050 5355...