Question

Is 7×5×3×2sum 3 is composite number?justify your answer

Answer 1

Answer:

Hey mate

Here is your answer

7×5×3×2+3 = 3 (70+1) = 3 x 71.

It has two factors 7 & 31 so it can't be prime number.

All factors- 1 , 213 , 3 & 71.

Therefore it is a composite number.

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Answer 2

Answer:

It is a composite number.

Step-by-step explanation:

7*5*3*2+3 can be written as;

3(7*5*2*1+1)

=>3(70+1)

=>3(71)

We can observe that the number is divisible by 3,

So, it is a composite number.

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