221, 442, 663, 884 and so on.
Apart from itself and 1, the only numbers that divide evenly into 221 are 13 and 17. Therefore, 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.
1, 13, 17, 221.
1, 13, 17 and 221.
To determine what goes into 221, we can look at its factors. The numbers that multiply together to give 221 are 1, 13, 17, and 221 itself. Specifically, 221 can be expressed as the product of 13 and 17 (13 × 17 = 221). Thus, the factors of 221 include both prime numbers and 1.
73.6667
13 x 17 = 221
221
1, 13, 17, 221
13 times 17 = 221
There are no two primes whose sum is 221.
It is: 13