If you know the prime factorization of a number, you can find out the total number of factors.
Example: 210
21 x 31 x 51 x 71 = 210
Add one to the exponents and multiply them.
2 x 2 x 2 x 2 = 16, the total number of factors.
You know that 1, 2, 3, 5, and 7 are factors. You need three more to get halfway.
2 x 3 = 6
2 x 5 = 10
2 x 7 = 14
Divide all those numbers into 210.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
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.
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.
All factors of a number
The procedure to find all factors of a number are: 1) Separate the number into prime factors. 2) Try out all combinations of those factors.
All of them. Different numbers have different numbers of factors.
That depends what number you are trying to find the factors of - all those three numbers are factors of the number 18.
1,3,9 and27
-- List all factors of the first number. -- List all factors of the second number. -- If there are more than two numbers, list all factors of each one. -- Find the set of factors that are on every list. -- Find the greatest factor in the set.
1,2,7,8,28,56
factor tree
No, but factors can.
List all the factors. Select the ones that are prime numbers.