81 = 3x3x3x3 = 34
81 = 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
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 :)
Whole Number : Set of counting numbers along with zero. i.e. W = {0,1,2,3...} Therefore, 81 is a whole number.
All Factors of 81:1, 3, 9, 27, 81
16, 81, 256, 625 all have five factors.
Factors of 81 in pairs = 1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1.
Yes, it is.
16 and 81 have 5 factors
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
It has more than two distinct factors; they are 1, 3, 9, 27, 81