To identify all whole number factors of 63, we can determine which whole numbers divide 63 without leaving a remainder.
The factors of 63 are:
- 1 (since 1 × 63 = 63)
- 3 (since 3 × 21 = 63)
- 7 (since 7 × 9 = 63)
- 9 (since 9 × 7 = 63)
- 21 (since 21 × 3 = 63)
- 63 (since 63 × 1 = 63)
Thus, the complete list of whole number factors of 63 is {1, 3, 7, 9, 21, 63}.
So the correct response is:
{1, 3, 7, 9, 21, 63}