3/8
1) Examining the spinner and each of those numbers we can write the following for the factors of 35
The whole numbers that are factors of 35:
1,5,7 and 35
As in the spinner, we have 1, 5, and 7 we need to find out the probability of those three numbers.
2) Since there are 8 possibilities altoghether to picking one number.
We can write the number 8 as the bottom number.

3) So the probability of picking one factor of 35 is 3/8