Question

1,620 divisible by 3​

Answer 1

Answer:

Step-by-step explanation:

1+6+2+0=9

As 9 is divisible by 3, then 1620 is divisible by 3.

1620/3= 540

Answer 2

Answer:

→ A number is divisible by 3 only if its digits' sum is a multiple of 3, i.e, its sum comes under the multiplication table of 3.

So, to check divisibility of 1620 by 3, we just need to check whether its sum is a multiple of 3 or not, i.e -

1+6+2+0 = 9

Now, as we know 9 (sum of 1+6+2+3) is a multiple of 3,

we can clearly say that 1620 is divisible by 3

∴ 1620 is divisible by 3

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