"Find all the factors of 36"

( 1)

∵36=(2? )*(3? )

∴36 has (2+ 1)*(2+ 1)=9 factors.

Note: Add 1 to the two indices respectively, and then multiply them.

(3) 36 of all factors:

2^0,2? ,2? ,

3? ,3? ,

2? *3? ,2? *3? ,2? *3? ,2? *3?

Namely: 1, 2, 4, 3, 9, 6, 12, 18, 36.

PS: Please remember all prime numbers within 100.