Factors of 81 in pairs = 1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1.
Three factor pairs
1, 3, 9, 27, and 81.
One of them.
3, 9 and 27
Factors are just numbers 81 can be divided by. The whole number factors are 1, 3, 9, 27, and 81
81
9 squared is 81. Two digits lower than 81 is 79. 79 is a prime number. Its only factors are one and itself. That does not compute. 78 has 26 and 6 as factors. 78 is three digits lower than 81. That does not compute.
Factors refer to whole numbers. The square root of 820 is not a whole number.
The factors of 81 are 1, 3, 9, 27, 81. For them to be common, they need to be compared to another set of factors.
81 = 3x3x3x3 = 3481 = 1,3,9,27,81
Factors are just numbers 81 can be divided by. The whole number factors are 1, 3, 9, 27, and 81
Whole Number : Set of counting numbers along with zero. i.e. W = {0,1,2,3...} Therefore, 81 is a whole number.
81/9 = 9
There is no whole number - 81/90 in its simplest form is 9/10 !
16 and 81 have 5 factors
It has more than two distinct factors; they are 1, 3, 9, 27, 81
No, it does not.
It is a composite number, you can get 81 by mulitpling 1*81, 3*27, and 9*9.compositeNo the number 81 is not prime it can be divided by nine.composite
Factors are numbers you can multiply together to get another number. 81: 1, 3, 9, 27, 81
No. 81=9*9=3*27=1*81 81 has 5 factors and is a square number. 36=6*6=3*12=1*36=2*18=4*9 36 has 9 factors and is a square number. This doesn't mean that no square numbers have exactly 3 factors though, because: 9=3*3=1*9 9 has 3 factors and is a square number. 4=2*2=1*4 4 has 3 factors and is a square number. All square numbers have an odd number of factors though (because they have a whole number which multiplies by itself to get the number). Factors are whole numbers only, and not decimals. Hope this helps :)
Yes, it is.