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217/5 = 43 with remainder 2
217 ÷ 6 = 36.16 recurring or 36 times with a remainder of 1.
3 times with a remainder of 25
Lets see if 217 is a prime or composite number. 15 times 15 is 225, so we will try the first prime numbers up to 15. They are 2, 3, 5, 7, 11, and 13. Will 2 go into 217? No 7 is odd. Will 3 go into 217. If we add the integers, they add up to 10. 3 does not go into 10. Will 5 go into 217. No. It does not end in a 0 or a 5. Will 7 go into 217. Lets see. Will 7 go into 21? Yes it goes in an even number of times. How about that. Will seven go into 7. Yes it goes in an even number of times. You can show the math.
To calculate how many times 31 can go into 280, you would perform division: 280 ÷ 31 = 9 with a remainder of 1. This means that 31 can go into 280 exactly 9 times, with 1 left over.