Question

Write the prime factorization of each number. Use division. Show your work. For number 711.

Answer 1

do you know instantly that this number is divisible by 9?

Answer 2

3^2×79

Answer 3

3*3*79

Answer 4

no i didn't , i didnt think it was divisable by anything . :/

Answer 5

\[7+1+1=9\] so it is divisible by 9. add up the digits

Answer 6

7+1+1 = 9, so it is divisible by 9, also divisible by 3

Answer 7

then divide 711 by 9 you will get
\[711\div9=79\] so
\[711=9\times 79\] of course 9 is not prime , its
\[3\times 3\] so your answer is
\[3\times 3\times 79\] or
\[3^2\times 79\]