Question

229 делится ли на 3 число а)227376;b)47327;c)388916;)211455 да нет и почему​

Answer 1

Число делится на 3, когда сумма его цифр делится на 3.

227376

2+2+7+3+7+6=27

27 делится на 3=> 227376 делится на 3

47327

4+7+3+2+7=23

23 не делится на 3 => 47327 не делится на 3

388916

3+8+8+9+1+6=35

35 не делится на 3 =>

388916 не делится на 3

211455

2+1+1+4+5+5=18

18 делится на 3=>

211455 тоже делится на 3

Answer 2

To determine if a number is divisible by 3, you can check if the sum of its digits is divisible by 3. Let's apply this rule to the given numbers:

a) 227376: The sum of the digits is 2 + 2 + 7 + 3 + 7 + 6 = 27. Since 27 is divisible by 3, 227376 is divisible by 3. [[1]]

b) 47327: The sum of the digits is 4 + 7 + 3 + 2 + 7 = 23. Since 23 is not divisible by 3, 47327 is not divisible by 3. [[2]]

c) 388916: The sum of the digits is 3 + 8 + 8 + 9 + 1 + 6 = 35. Since 35 is not divisible by 3, 388916 is not divisible by 3. [[3]]

d) 211455: The sum of the digits is 2 + 1 + 1 + 4 + 5 + 5 = 18. Since 18 is divisible by 3, 211455 is divisible by 3. [[4]]

In summary: a) 227376 is divisible by 3. b) 47327 is not divisible by 3. c) 388916 is not divisible by 3. d) 211455 is divisible by 3.

Please let me know if there's anything else I can help you with!