A factor pair is a pair of numbers, which when multiplied gives a specific number. Factor pairs of 6 are: 2&3 and 1&6 Let us form 3-digit numbers that have a 6 in the ones place and the pair 2&3 in the other two places. 236 and 326 are the desired numbers. Now, let's form 3-digit numbers that have a 6 in the ones place the pair 1&6 in the other two places. 166 and 616 are the desired numbers. Therefore, all possible 3-digit numbers that have 6 in the ones place and the two factor pairs in the other two places are 236 326 166 616