Number of the Day question 16.

4391.786

the whole number is 4391. So 4391 divided by two is 2195.5. So it isn't divisible by 2.

4391 divided by 3 is 1463.6666, so it isn't divisible by 3.

4391 divided by 4= 122.75. So it isn't divisible by 4.

4391 divided by 5=878.2. So it isn't divisible by 5.

4391 divided by 6 equals to a repeating number.

4391 divided by 8 equals to another repeating number.

4391 divided by 9 equals to another repeating number. So 4391 is a prime number its only 1, and itself.