All the factors are possible.
Yes, the factors of 16 are also the factors of the multiples of 16.
The prime factors of 63 are 3*3*7 . The non-prime factors are 9 and 21. The multiples of 63 are 63 * n where n is any number you feel like. The second part of this question is essentially meaningless.
5/33
The reason Chinese writing is so hard is because there are 11 possible brush strokes and a different Chinese character for every part of a word!
The multiples of 4 are the values such that they are divisible by 4. For example, 4, 8, 12 and any integer multiplied by 4 to be the part of the multiples of 4.
No part of the writing process is optional.
Prewritting
Any multiple of 21.
Interjection is the part of speech rarely used in formal writing.
Writing is a subject part of language. In writing you do grammar punctuation and spelling errors.
prewriting
Creative writing is not necessarily writing a story. It means just what it seems to. Fictional story writing is a part of creative writing though.