Question

81620divisibility number by 2,3,4,5,6,8,10,11 by step by step ​

Answer 1

Step-by-step explanation:

81620 is divisible by 2,4,5,10,11

Answer 2

Answer:

1. Divisibility by two:

The number should be even.

Since the number is even, then-

81620/2= 40810

2. Divisibility by three:

The sum of digits of the number should be divisible by three.

8+1+6+2+0= 17

17 is not divisible by three.

81620 is not divisible by three.

3. Divisibility by four:

The last two digits of the number should be divisible by four.

Last two digits= 20 which is divisible by four.

81620/4= 20405

4. Divisibility by five:

The last digit of the number should either be 0 or 5.

Last digit= 0

Since the last digit is either 0 or 5, then-

81620/5= 16325

5. Divisibility by six:

The number should be divisible by both two and three.

81620 is divisible by two.

81620 is not divisible by three.

The number is not divisible by three.

So, the number is not divisible by six.

6. Divisibility by eight:

The last three digits of the number should be divisible by eight.

Last three digits= 620

Since 620 is not completely divisible by eight, so the number is not divisible by eight.

7. Divisibility by ten:

The last digit of the number should be 0.

Since the last digit is a 0, so-

81620/10= 8162

8. Divisibility by eleven:

The difference between the sum of digits at the odd places and even places should either be zero or a multiple of eleven.

Odd places digits= 0, 6 and 8

Even places digits= 2 and 1

⇒ (6+8)-(2+1)

= 14-3

= 11

Since the difference is a multiple of eleven, then the number is divisible by eleven.

81620/11= 7420

Hope it helps you.

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