To find all the factor pairs for 39, we first note the factors of 39. The factors of 39 are 1, 3, 13, and 39.
Now, we can create equations using different pairs of factors:
- \( 39 = 1 \times 39 \)
- \( 39 = 3 \times 13 \)
Therefore, the completed equations are:
- \( 39 = 1 \times 39 \)
- \( 39 = 3 \times 13 \)