Question

Arrange the digits 1,2,3,4,5,6,7,8 such that the number formed by the first two digits is divisible by 2, number formed by the first three digits is divisible by 3, number formed by the first four digits is divisible by 4 and so on​

Answer 1

Answer:

Step-by-step explanation:

n=381654729

is the only solution.

1|3

2|38

3|381

4|3816

5|38165

6|381654

7|3816547

8|38165472

9|381654729.

Answer 2

Answer:The required number is 381654729.

*The first digit 3 is divisible by 1.

3÷1=3

* The number formed by the first two digits 38 s divisible by 2.

38÷2=19

*The number formed by the first three digits 381 is divisible by 3.

381÷3=127

* The number formed by the first four digits 3816 is divisible by 4.

3816÷4=954

* The number formed by the first five digits 38165 is divisible by 5.

38165÷5=7633

*The number formed by the first six digits 381654 is divisible by 6.

381654÷6=63609

*The number formed by the first seven digits is divisible by 7.3816547÷7=545221

*The number formed by the first eight digits is divisible by 8.

38165472÷8=4770684

*The number formed by the first nine digits is divisible by 9.

381654729÷9=42406081

Step-by-step explanation: