What is the value of 3241 x 25 x 40?

The expression is:

$$3241 \times 25 \times 40$$

We can group 25 and 40 together.

$$3241 \times (25 \times 40)$$

$$25 \times 40 = 1000$$

Substitute this value back into the expression:

$$3241 \times 1000$$

Multiplying by 1000 means adding three zeros to the end of the number.

$$3241 \times 1000 = 3241000$$

The final answer is 3241000.