515 is an earlier date than 124
That completely depends on what 'y' is. And if 'y' ever changes, [ y + 515 ] also immediately changes. The only thing you know about it for sure is: Whatever 'y' is, [ y + 515 ] is 515 more than 'y'.
Because it has more than two factors which are: 1, 5, 103 and 515
The infinitely many multiples of 515: 515*1, 515*2, 515*3 etc.
515= 515 * 100%= 51500%
The general factors of 515 are : 515, 103, 5 and 1. The prime factors of 515 are 5 and 103.
The positive integer factors of 515 are: 1, 5, 103, 515
0.55 is 0.035 bigger than 0.515
1,5,103 and 515
515 5,103
7divide by 515 = 0.013592233009708738
1, 5, 103, 515
9004 - 515 = 8489