Respuesta :
Answer:
60 is composite. It's divisible by 3.
Subtract 3, you get 57.
57 is ALSO divisible by 3.
Just a fun fact:
To know if a number is divisible by 3, do a simple divisibility test:
Add all of its digits. Keep adding until you get a digit.
5+7=12
12 can also be added:
1+2=3
AHA! If the digit is 3, 6, or 9, the number is 100% divisible by 3!:)
Please give brainliest...
Step-by-step explanation: