No.
221 = 13 x 17
The prime factors of 221 are 13 and 17. They're the only prime numbers that will divide evenly into 221 with no remainder.
13
Use a factor tree. 221 13,17 All the factors are prime. 13 x 17 = 221
231 / \ 3 77 / \ 7 11 / \ 11 1
The prime factors of 221 are 13 and 17. 13 x 17 = 221. The factors of 221 are 1, 13, 17, and 221.
No it is not a prime number, because you can multiply 13 and 17 together and get 221 13x17=221
No, 13*17=221, therefore it is not.
No.
1, 13, 17, and 221.
221 has two factor pairs: 13 * 17 and [perhaps redundantly] 1 * 221
221 = 13 x 17
13*17 = 221