The mantissas of 2X, 3X, 7X and 8X all change with a period of 4. Take this sentence as an example: the power of 65438+3 is 0 =3, the power of 3 is 9, the power of 3 is 27, the power of 4 is 81,the power of 5 is 243, and the power of 6 is 729. The same is true for 3X, 7X and 8X.

The mantissas of 4X and 9X both change with a period of 2; Take this sentence as an example: 1 power of 4 =4, quadratic of 4 = 16, cubic of 4 =64, quartic of 4 =256, and so on. The mantissa is based on 4 and 6. The same is true of 9X.

In addition, the mantissas of 5X and 6X are always 5 and 6. Take this sentence as an example: 65438+5 to the power of 0 =5, 5 to the power of 2 =25, 5 to the power of 3 = 125, and so on, the mantissa is all 5. The same is true for 6X.

If in doubt, please consult the public education enterprises in China.