Lots of answers to this type of question.
50.3 x 10
1006 x 0.5
5.03 x 100
100.6 x 5
503 x 1
10.06 x 50
20.12 x 25
etc.
1 x 503, 503 x 1
503 x 5993 = 3014479
1,006
2012... simple multiplication.
Because it is far easier than writing 1,1,1,1 ... 503 times!
83 with remainder 5.
The factors of 503 are: 1, 503.
5.03
503 hundredths in decimal = 5.03
503 = 50,300%
503
503 is prime.