Question

a
4) Explain why 3 x 5 x 7 + 7 is
composite number.
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Answer 1

hey mate

here is your answer...

3×5×7+7 is composite number because it has more than two factors...

Answer 2

hey mate here is your answer...

3×5×7+7 gives us 112

because 3×5is 15 and 15×7is 105 and 7 added to 105 gives us 112 and 112 is an even number and all even numbers are composite numbers except 2 ...

hope it helps you