Question

1×2×3×4×5×6×7+5 is a composite number and how to prove that it is composite.
PLEASE ANSWER ​

Answer 1

Answer:

take the help of google

Answer 2

Answer:

Love this proof. Still remember by heart.

Step-by-step explanation:

1 X 2 x 3 x 4 x 5 x 6 x 7 + 5

= 5 ( 1 X 2 x 3 x 4 x 6 x 7 + 1)

= 5 ( 1008 + 1 )

= 5 x 1009

Therefore, 1 X 2 x 3 x 4 x 5 x 6 x 7 + 5 can be expressed as a product of numbers other than 1 and itself. Thus, it is a composite number.

Hence, proved.

Hope it helped!