You have a few choices:
> 1 and 81
> 3 and 27
> 9 and 9
> 3 and 3 and 3
9 x 9 = 81 :(
81
81 times 70 equals 5,670. This can be calculated by multiplying 81 by 70, which results in 5,670. To do this, you would multiply the tens place of 81 (which is 8) by 70, resulting in 560, and then multiply the ones place of 81 (which is 1) by 70, resulting in 70, and finally add these two products together to get the final answer of 5,670.
1 x 81, 3 x 27, 9 x 9.
These: 1 x 81, 3 x 27, 9 x 9
There are no two real numbers that will add to -9 and multiply to 81. Using complex numbers, the two numbers are: (-9/2 + i9/2√3) and (-9/2 - i9/2√3)
They are: 9 times 9 = 81
Factors are numbers you can multiply together to get another number. 81: 1, 3, 9, 27, 81
1 x 729, 3 x 243, 9 x 81, 27 x 27
9 x 9 = 81 :(
3 & 27
2.4115 and 33.5885 (to 4 dp)
81
They are: 2 times 81 = 162
162
81 times 70 equals 5,670. This can be calculated by multiplying 81 by 70, which results in 5,670. To do this, you would multiply the tens place of 81 (which is 8) by 70, resulting in 560, and then multiply the ones place of 81 (which is 1) by 70, resulting in 70, and finally add these two products together to get the final answer of 5,670.
These: 1 x 81, 3 x 27, 9 x 9