# What are all of 496's factors?

Find any factor - like 2, then divide by 2, to get the other factor: 2 x 248. Continue finding more factors for the number to the right, until you divided the number into prime factors.

### Why do the factors of 16 are also factors of 32 and 64?

All numbers have factors. Some numbers have some of the same factors as other numbers. Multiples of numbers have all of the factors of numbers that are factors of them, plus some of their own. 32 is a multiple of 16 and will have all of its factors. 64 is a multiple of both 32 and 16 and will have all of their factors.

### Would you rather find all the factors of a number or find all the prime factors of a number?

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.

### What the common factors of 24 32 and 40?

A simple way to find the common factors of any set of numbers is to find all the factors of each one. For example: Let A be all the factors of 24. Let B be all the factors of 32. Let C be all the factors of 40. A = {1,2,3,4,6,8,12,24} B = {1,2,4,8,16,32} C = {1,2,4,5,8,10,20,40} So now we find the intersection (that is all the numbers that are common in all of the…