The problem asks to calculate the product of 142709 and 3.

1. Problem Description

The problem asks to calculate the product of 142709 and

3.

2. Solution Steps

To find the product, we multiply 142709 by

3. $142709 \times 3$

$3 \times 9 = 27$, write 7, carry over

2. $3 \times 0 = 0$, $0 + 2 = 2$, write

2. $3 \times 7 = 21$, write 1, carry over

2. $3 \times 2 = 6$, $6 + 2 = 8$, write

8. $3 \times 4 = 12$, write 2, carry over

1. $3 \times 1 = 3$, $3 + 1 = 4$, write

4. So, $142709 \times 3 = 428127$.

3. Final Answer

B. 428 127