Question

test whether 642558 is divisible by 2,3,6,12​

Answer 1

Answer:

Divisibility by 2:

Check whether the one's term is divisible by 2.

8÷2=4

So, 642558 is divisible by 2.

Divisibility by 3:

Check whether the sum of all the terms is divisible by 3.

6+4+2+5+5+8=30

30÷3=10

So, 642558 is divisible by 3.

Divisibility by 6:

Check whether it is divisible by 2 and 3.

642558 is divisible by 2 and 3,

so 642558 is divisible by 6.

Divisibility by 12:

Check whether it is divisible by 3 and 4.

It is divisible by 3.

For divisibility by 4, check whether the last 2digits of the number is divisible by 4.

58÷4=14.5

So, 642558 isnt divisible by 12.