When you can no longer break down factors. when all the numbers at the bottom are prime!
873 x 29Since both 3 and 29 are prime numbers, the factor tree is complete.
78 6 x 13 (2x3) x 13 The numbers 2, 3, and 13 are prime numbers, so the factor tree is complete. An alternate version of a factor tree for 78 is: 78 2 x 39 2 x (3x13)
588 4 x 147 (2x2) x (3x49) (2x2) x (3 x (7x7)) Since 2, 3, and 7 are prime numbers, the factor tree is complete.
Factor tree of 40: 40 20,2 10,2,2 5,2,2,2
728 13 x 56 13 x (7x8) 13 x (7 x (2x4)) 13 x (7 x (2 x (2x2))) Since 2, 7, and 13 are prime numbers, the factor tree is complete.
When the bottom branch consists entirely of prime numbers.
no it does not matter what two factors you select to complete a factor tree (i just learned that today in class :D)
873 x 29Since both 3 and 29 are prime numbers, the factor tree is complete.
A factor tree is a representation of the process of finding the prime factorization of a given number. It's complete when the bottom branch consists entirely of prime numbers.
A factor tree of 78: 78 6 x 13 (2x3) x 13 Since 2, 3, and 13 are prime numbers, the factor tree is complete.
133 7 x 19 Both 7 and 19 are prime numbers, so the factor tree is complete.
253 11 x 23 Both 11 and 23 are prime numbers, so the factor tree is complete.
Yes. Factors that complete a factor tree need to be prime. However, it doesn't matter what two factors you select to start a factor tree.
you use a factor tree
When the bottom branch is all prime numbers.
125 5 x 25 5 x (5x5) Since 5 is a prime number, the factor tree is complete.
62525 x 25(5x5) x (5x5)Since 5 is a prime number, the factor tree is complete.625125,525,5,55,5,5,5