80
64
Zero. I would not both er with regrouping.
1, 2, 4, 5, 8
The only factors of 2 are 1 and 2. The factors of a prime number are 1 and the number itself.
Oh, dude, you're hitting me with the math questions, huh? So, a 2-digit number with 10 factors would be 60. Why? Because it has factors 1, 2, 3, 4, 5, 6, 10, 12, 15, and 30. Boom, math wizardry at its finest!
97
88 does.
96
36 has nine factors.
28 is an example of a 2 digit composite number because it has more than two factors.
97
There are none but the smallest 3 digit number is 161
95
100
88
80