Question

using divisibility test, determine $6000$ is divisible by $4$ and $8$:

Answer 1

If the last two digits of a whole number are divisible by $4$ , then the entire number is divisible by $4$
But in $6000$ last two digits are zero so :
When $6000÷4=1500$, we get remainder zero therefore the $6000$ is divisible by $4$.
If the last three digits of a whole number are divisible by $8$ , then the entire number is divisible by $8$.
But in $6000$ last three digits are zero so :
When $6000÷8=750$, we get remainder zero therefore the $6000$ is divisible by $8$.
Hence $6000$ is divisible by $4$ and $8$.