Question

Check the divisibility conditions for 5, 6 and 7 of the following numbers. i) 54672 ii) 111112 iii) 77779 iv) 555555 .​

Answer 1

Answer:

i) Divisible by:     5-No        6-Yes        7-No

ii) Divisible by:     5-No        6-No        7-No

iii) Divisible by:     5-No        6-No        7-No

iv) Divisible by:     5-Yes        6-No        7-Yes

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Answer 2

1. 54672 is not divisible by since last digit is 2 .

1. 54672 is divisible by 6 since it is divisible by 2 and 3 . 54672 ÷ 6 = 9112

1. 54672 is not divisible by 7 as its even the last 3 numbers are even .

2 . 111112 is not divisible by 5

2. 111112 is not divisible by 6 also

2. 111112 is not divisble by 7 as its last 3 digit contain 1 even number.

3. 77779 is not divisible by 5

3. 77779 is not divisible by 6

3. 77779 is not divisible by 7 because every digit is odd .

4. 555555 is divisible by 5 (555555 ÷ 5 = 111111)

4. 555555 is not divisible by 6

4. 555555 is divisible by 7 as all digits sre same.( 555555 ÷ 7 = 79365)

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