Since 81 is not divisible by 7 therefore, 7 is not a factor of 81.
Nine is the highest common factor of 81 and 9
No, 18 is not a factor of 81.
The GCF of 53 and 81 is 1.
The greatest common factor of 56 and 81 is 1.
9x9=81. Proving that one of the factor trees for 81 is 9xp.
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
The factors of 81 are: 1, 3, 9, 27, 81.
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
45 15,3 5,3,3 81 27,3 9,3,3 3,3,3,3
51 3,17 81 9,9 3,3,9 3,3,3,3 The GCF is 3.
It is 3*3*3*3 or 3^4.
. 68 . / \ 2 x 34 ..... / \ ... 2 x 17
It can be. 81 is a factor of 162.