how do you not know it is of course cos 9 times 9 equals to 81
The Least Common Multiple of 9 and 81 is 81.
You can multiple 9 x 9 to get 81
9 * 9 = 81 and3*3*3*3 = 81
A common multiple of 9, 81 and 45 is 32805. This is not the least such number.
The next multiple of 9 after 72 is 81
No but it's a multiple of 9 and 3
81 is the square of 9, and is also a multiple of 3 because 3(27) = 81.
A common multiple of 9, 45 and 81 is a number of the form 405*k where k is any integer.
No. You can tell if a multiple digit number is a multiple of 9 because the digits will add up to 9 or a multiple of 9. For example 81 is a multiple of 9 because 8+1=9. The two multiples of 9 closest to 87 would be 81 and 90.
Yes.
it would be 81 since it is a multiple of 9
1/3 of 81 = 27