Without doing the actual division, find the remainder when 28735429 is divided by 9.

Question

Accepted Answer

To find the remainder when a number is divided by 9, sum the digits of the number and find the remainder when this sum is divided by 9. Let's sum the digits of 28735429:

2 + 8 + 7 + 3 + 5 + 4 + 2 + 9 = 40

Now, divide 40 by 9:
9 × 4 = 36, remainder = 40 - 36 = 4

But let's check if we made a calculation error. Let's add the digits again:
2 + 8 = 10
10 + 7 = 17
17 + 3 = 20
20 + 5 = 25
25 + 4 = 29
29 + 2 = 31
31 + 9 = 40
So the sum is 40.

Now, 40 divided by 9:
9 × 4 = 36, remainder = 4.

Therefore, the correct answer is 4.

Final answer: Option 1 (4).

Answer

Answer

Answer