## anonymous one year ago Justin wrote the following indirect proof: Prove: 7 is a factor of 91. Step 1: Assume that 7 is a factor of 91. Step 2: 91 divided by 7 is 13. Step 3: A factor is an integer by which another integer is divisible. Step 4: Therefore, 7 must be a factor of 91. Which step in Justin's proof is incorrect? Step 1 Step 2 Step 3 Step 4

1. anonymous

I don't get this problem because they are all correct

2. Mehek14

Factors are numbers you can multiply together to get another number in step 3, it says A factor is an integer by which another integer is divisible.

3. ParthKohli

I don't see a problem in step 3.

4. Mehek14

but the definition of factor is wrong in step 3

5. anonymous

They all seemed correct

6. Mehek14

$$\bf{factors\rightarrow{multiplication}}$$

7. anonymous

Ok thank you