दी गई संख्याओं के समूह में से विषम संख्या (अलग संख्या) ज्ञात कीजिए: 61, 71, 41, 91

Find the odd one out from the given numbers.

Choose the group of numbers which is different from the others based on a common property:

Identify the number which is different from the others in the following set based on the sum of its digits: 876, 885, 579, 696, 398