Chikurimon proliferates abnormally when the temperature exceeds 30°C. As a tamer you came to study it's normal habitat and characteristics.
View the image above and basing from it, predict what number is the unknown one.
There are 2 question marks in the image yet the answer is only one and the same for both.
Rules:
1. Each tamer can only answer the ? in this game 1 time per day (from the time you posted.) You can try guessing the answers for the other word association games too if you have already placed your guess/answer for the day here.
2. As long as I haven't concluded that somebody has won this contest already then you are still free to place your guesses.
3. Please follow this format in placing your answer:
?= [Your answer]
4. No chatting please, we have a different thread for chatting.
5. You win the digimon if you have correctly answered thE unknown number.