All Factors of 2009:
1, 7, 41, 49, 287, 2009
find all factors of 61
find all factors of 72
Once all the prime factors of a number have been found, the number of factors the number has and what they are can be found. I'd be finding the prime factors first before finding all the factors of a number, so I'd rather find all the prime factors as it means I can stop before I have to do more work in finding all the factors.
You could. All of the factors of 100 are factors of 200.
All of them. Different numbers have different numbers of factors.
1,2,3,6,9,18
1,3,9,13,39,117
90
All Factors of 81:1, 3, 9, 27, 81
Factoring can be simple. In order to find the factors of a number, a person finds all the numbers that divide into the number evenly.
The prime factors of 51 are 3 and 17. Once you add itself and one, you have all the factors. (1,3,17,51)
The factors of 75 are 1,3,5, 15, 25, 75.