24
12,2
6,2,2
3,2,2,2
24 12,2 6,2,2 3,2,2,2 23 x 3 = 24
24 12,2 6,2,2 3,2,2,2
The greatest factor of 24 is 24. The greatest factor of a number is the number itself.
24 12,2 6,2,2 3,2,2,2
The purpose of a factor tree is to notate the process of finding the prime factorization. If a number is already prime, a factor tree is not necessary.
The purpose of a factor tree is to divide a number into prime factors. 1 is not a prime number.
12,2 6,2,2 3,2,2,2
12,2 6,2,2 3,2,2,2
13 is a prime number so it doesn't have a factor tree.
There is no factor tree nor factors of 57 as it is a prime number.
24 12,2 6,2,2 3,2,2,2
No 21 is not a factor of 24. In order for a number to be a factor of another number, x number times n number must equal the number you are trying to factor. Below is a self made image that explains factoring and shows you how to factor 24.