CAN YOU HELp??????????????????

Question

Use factor trees to find the prime factorization of each of the following numbers. Use exponents when possible ok first of all what is a factor tree?

45 = ___________

121 = ____________

256 = ______________

Answer 1

A factor tree breaks down the factors of a number till all numbers are prime.

45 is 9x5. 5 is prime. 9 Is not. Factor it to 3x3. Prime factors are 3,3,5 and 1.

121 is 11 x12. 3x4=12 2x2=4 so for 121 they are 11, 3, 2, 2 and 1

256 is 16x16 so continue as above.

To check 1x3x3x5=45 etc

Answer 2

you prime factor by getting whatever number to a bunch of PRIME number when multiplied together get the original number. you factor out whatever value and make a 'tree' by drawing lines out like 'branches' and putting two values at the end.
45
^
5 9
^
3 3
and then it helps if you circle all the prime numbers as you go

Answer 3

ok here we go:
45
so now what times what = 45?

its 9*5
so right 45 on your paper then draw a line form the 45 down to the 9 and 5.

then you say what times what = is 9 and that is is 3*3

so now you have 45
9 5
3 3
and nothing will go into 5 so your answer is 3 to the secound power TIMES 5