16: 2
28: 2, 7
81: 3
Chat with our AI personalities
The only prime factor of 81 is: 3.The prime factors of 225 are: 3 and 5.
The prime factors of 81 are 3x3x3x3 (or 34 in expontial form). The prime factors of 108 are 2x2x3x3x3 (or 22 x 33 in exponential form).
The product of its prime factors are: 3*3*3*3 = 81
1,3,5,9,15,45 1,3,9,27,81 3 and 5 are prime.
Yes.