405 x 405 = 164,025
Pairs of positive integer factors of 405 are: 1 x 405 3 x 135 5 x 81 9 x 45 15 x 27 And their reverses.
405 x 100 = 40500
405 = 3 x 3 x 3 x 3 x 5
1 x 405, 3 x 135, 5 x 81, 9 x 45, 15 x 27
405 x 405 = 164,025
Pairs of positive integer factors of 405 are: 1 x 405 3 x 135 5 x 81 9 x 45 15 x 27 And their reverses.
The prime factorization of 405 is: 3 x 3 x 3 x 3 x 5
405 x 100 = 40500
1 x 405, 3 x 135, 5 x 81, 9 x 45, 15 x 27.
405 x 1/5 = 405 / 5 = 81
Keep dividing. 3 x 3 x 3 x 3 x 5 = 405
The pf of 405 is: 3 x 3 x 3 x 3 x 5 or 34 x 51
405 !!! use a calculator
45 / 405 x 100 = 11.11%
405 = 3 x 3 x 3 x 3 x 5
3*3*3*3*53 x 3 x 3 x 3 x 5 = 405