Tough to answer this because you haven't indicated what to do with the 81.
64r2 - 144 factors to 16(2r + 3)(2r - 3)
64r2 - 81 factors to (8r + 9)(8r - 9)
Since 81 is not divisible by 7 therefore, 7 is not a factor of 81.
No, 18 is not a factor of 81.
Nine is the highest common factor of 81 and 9
The GCF of 53 and 81 is 1.
The greatest common factor of 56 and 81 is 1.
It can be. 81 is a factor of 162.
19 is not a factor of 81. Factors of 81 are 1, 3, 9, 27, and 81
1,2,3,4,6,8,9,12,18,24,36,72 factor of 72 1,3,9,27,and 81 is factor of 81
Since 81 is not divisible by 7 therefore, 7 is not a factor of 81.
9x9=81. Proving that one of the factor trees for 81 is 9xp.
No, 18 is not a factor of 81.
The highest common factor of 81 and 27 is 27
Nine is the highest common factor of 81 and 9
The greatest common factor of 52 and 81 is 1
81 is.
81 = 3^4
A factor = a number which can be divided into the given number with no remainder Yes. It's the only factor of 81 (apart from 9, 27 and 81 itself).