Question

Test 59,859 for divisibility by 2,3,5,9,or 10

A. It is not divisible by any of them
B. 3
C. 3,9
D. 3,5,9

Answer 1

To test for divisibility, you look for answers that are whole numbers when you divide 59859 by either 2, 3, 5, 9, or 10.

To start divide it by each of them:

59859/2=29929.5

59859/3= 19953

59859/5= 11971.8

59859/9= 6651

59859/10= 5985.9

Now look at which of the choices are whole numbers

3 and 9 are the only non decimal numbers, therefore, C would be your answer.

Hope this helps!

Answer 2

Answer: C

Step-by-step explanation: The answer is C because:

You can use a lot of tricks to solve this problem. For divisibility of 2, you know that the number must be even to evenly divide by 2; 59,859 is not even, so you can scratch that out. For 3 and 9, there is a trick that says if the digits of a number add up to 3 and 9 respectively, then they are divisible by those numbers. The digits of 59,859 add up to 36, which is divisible by both 3 and 9, meaning that 59,859 is also divisible by 3 and 9. Lastly, for a number to be divisible by 5, it must end in 5 or 0, and for a number to be divisible by 10, the number must end in 0. 59,859 doesn't end in either of those giving you the final answer of:

B: 3, 9