The cache is not at the posted coordinates, you shall use them to calculate the final location.
For latitude, find the odd number out and add it to the posted northing: 2,166, 644, 1,255, 273, 819, 3,437, 5,128
For longitude, find the number that should replace the question mark and add it to the posted westing: 23, 28, 43, 65, 98, ?
