1 and 7
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56.
If your list looks like this one: 1, 3, 7, 9, 21, 63
Yes, technically, since -7 x -4 = 28. We do not generally list negative factors for positive numbers. We do list negative factors for negative numbers.
1,3,5,15
You need to Writ edown all the factors.. :)
The factors of 63 are: 1, 3, 7, 9, 21, 63.
1, 2, 7, 14, 49, 98
1 and 7
1, 2, 4, 7, 14, 28
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56.
They are: 1, 2, 4, 7, 14 and 28
1, 49, 7, 7. That is:1 x 49 = 497² = 49 [so 7 is twice]
1, 3, 5, 7, 15, 21, 35, 105
1, 2, 5, 7, 10, 14, 35, 70
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
The factors of 28 are 1, 2, 4, 7, 14, 28. For them to be common, they need to be compared to another set of factors.
All non-zero numbers have factors. These can be written down in a list. That would be known as a list of factors.