The factors of 21 are 1, 3, 7, and 21 which means that 21 is composite.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
The factors of 8 are 4x2 and 1x8
All Factors of 142:1, 2, 71, 142
1, 3, 7, 21
The factors of 21 are 1, 3, 7, and 21 which means that 21 is composite.
The factors of 63 are: 1, 3, 7, 9, 21, 63.
1, 3, 5, 7, 15, 21, 35, 105
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.
You list all the counting numbers that can perfectly divide 42 with no remainder. For 42 these are: 42, 1, 7, 6, 3, 14, 2, 21
The factors of 21: 1, 3, 7, 21.
The factors of 21 are: 1, 3, 7, 21.
All non-zero numbers have factors. These can be written down in a list. That would be known as a list of factors.
If your list looks like this one: 1, 3, 7, 9, 21, 63
all of them are factors, factors are numbers that divide into a number equally. if you had said what are the factors of 25 from this list then the answer would be... 25 divided by 5 is 5 so 5 is one so the only factor from the list is 5!
all the factors are 14:1, 2, 7, 14 21:1, 3, 7, 21