The three-digit number that Splinter wrote down is:
To solve the exercise, you must first count the number of letters in the names of each of the ninja turtles:
Therefore, a three-digit number must be found that is divisible by 7, 8, 9 and 12. Therefore, the number 504 is proposed, since:
And even if the same number of letters is subtracted, the number would still be divisible by that number of letters.
More information about Divisibility:
https://brainly.com/question/369266