Question

PART A
1. Explain why 7x6x5x4+5 is a composite number.​

Answer 1

Answer:

7x6x5x4+5

5(7x6x1x4+1)

5(168+1)

5x169

5x13x13x1

Since it has more than two factors it is a composite number

Answer 2

Step-by-step explanation:

7×6×5×4+5 can be written as

7×6×4×5+5= 5(7×6×4×1+1)

5(169)

therefore this number has more than 2 factors hence it is a composite number

proved