Question

Which numbers is/are divisible by 3: 958, 372, 3456, 8001​

Answer 1

9+5+8= 22 which isn’t divisible by 3 hence this number isn’t divisible by 3
3+7+2=12 divisible by 3
3+4+5+6= 18 divisible by 3
8+1=9 divisible by 3

Answer 2

Answer :-

• 372, 3456 and 8001 are divisible by 3.

To find :-

• The numbers which are divisible by 3.

We know that :-

• A number is divisible by 3 only if the sum of it's digits is divisible by 3.

• So let's use this knowledge to solve the question!

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First number :-

• 958.

Here,

• Sum of the digits = 9 + 5 + 8 = 22.

We see that :-

• Sum of the digits (22) is not divisible by 3.

• Hence, 958 is not divisible by 3.

-----------------------------

Second number :-

• 372.

Here,

• Sum of the digits = 3 + 7 + 2 = 12.

We see that :-

• Sum of the digits (12) is divisible by 3.

• Hence, 372 is divisible by 3.

-----------------------------

Third number :-

• 3456

Here,

• Sum of the digits = 3 + 4 + 5 + 6 = 18.

We see that :-

• Sum of the digits (18) is divisible by 3.

• Hence, 3456 is divisible by 3.

-----------------------------

Fourth number :-

• 8001.

Here,

• Sum of the digits = 8 + 0 + 0 + 1 = 9.

We see that :-

• Sum of the digits (9) is divisible by 3.

• Hence, 8001 is divisible by 3.

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Conclusion :-

• The numbers 372, 3456 and 8001 are divisible by 3$.$