Question

2. Explain why 3x5x7 + 7 is a composite number.​

Answer 1

Answer:

3×5×7+7

7(3×5×1+1)

7(15+1)

7(16)

7×16 = 112

thus it is the product of two number and both number 7 and 16 are more than one so it fits under the property of composite number

therefore 3×5×7+7 is a composite number.