Question

What is the units digit (one's digit) of the product of any six consecutive positive integers?

Answer 1

Step by step explanation:

Let us assume that the positive integers

are:

1,2,3,4,5,6

Product if the integers :

$1 \times 2 \times 3 \times 4 \times 5 \times 6$

$= 720$

The units digit of this product =

$720$

is "0"

Hence the units digit of any six consecutive integers is "0"