1, 13, 17, and 221.
221 has two factor pairs: 13 * 17 and [perhaps redundantly] 1 * 221
The greatest common factor of 494 and 221 is 13.
Use a factor tree. 221 13,17 All the factors are prime. 13 x 17 = 221
No. 221 = 13 x 17
No.
13
13 and 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.
The GCF is 221
231 / \ 3 77 / \ 7 11 / \ 11 1
1 mile = 1.609344 km, use this conversion factor
1 and 221, respectively.