Help with exercise HTML/JAVASCRIPT

Sample output:

Eg. 1

showMultiples(13, 0, 500)
[0, 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, 169, 182, 195, 208, 221, 234, 247, 260, 273, 286, 299, 312, 325, 338, 351, 364, 377, 390, 403, 416, 429, 442, 455, 468, 481, 494]

Eg. 2

showMultiples(13, 100, 500)
[100, 113, 126, 139, 152, 165, 178, 191, 204, 217, 230, 243, 256, 269, 282, 295, 308, 321, 334, 347, 360, 373, 386, 399, 412, 425, 438, 451, 464, 477, 490]

This illustrates two things. 1. 0 is undefined, so not a multiple of anything; and, 2. 100 is not evenly divisible by 13, so the entire list is wrong.