Question

Which of the following numbers differs from one another 19,29,21,23,13?
​

Answer 1

Answer:

21 is answer

Step-by-step explanation:

because all the number only have two factors,1 and itself, except 21

please mark me as brainlest ☺️

Answer 2

Answer:

Step-by-step explanation:23 because every number have gap of 4 but 23-21=2