SOLUTION: I am learning prime factored form and i dont undersand it , i know its simple but how do i find it? the problem I just did was the prime factored form of 45.... myanswer was 45=5x9

Question 407375: I am learning prime factored form and i dont undersand it , i know its simple but how do i find it? the problem I just did was the prime factored form of 45.... myanswer was 45=5x9 is that correct ? but now i am stuck on 78 how do i do it????? please help me.
Found 2 solutions by jim_thompson5910, rfer:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Now factor 9 into 3x3.

So 45 = 5x3x3 or 45 = 3x3x5. You'll also see it as

Notice 2 goes into 78. So 78 = 2x39 (divide 78 by 2 to get 39). Now factor 39 into 3x13. So 78 = 2x3x13. Now we're done because every factor is a prime factor.

If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
On your first question 9 is not a prime factor, 9 fators to 3X3
answer is 5 X 3 X 3
Second question
78
2 X 39
the 2 is prime, so it just comes down and we factor 39
2 X 3 X 13
RELATED QUESTIONS
Ok right now in algebra class we are learning about "standard form" w/ linear equations.. (answered by stanbon)
hey,6ths grade is starting this Augst and im all for the learning but i got a problem as... (answered by richard1234,ankor@dixie-net.com)
I am just learning to do functions, domain. When f(x)=x+1 and g(x)=2x find: a)... (answered by stanbon)
i am learning elimination using multiplication and i am really stuck i get everything i... (answered by solver91311)
I just statred college after I was off for 10 years. In high school I loved it and did... (answered by bucky)
Please dont give me an answer to the problem. I am not doing any homework. I am just... (answered by muthbab@gmail.com)
I need to know how to write this equation in order to find the answer. If I am 48 and my (answered by mananth)
The sum of two numbers is 40 the difference is 8 what are the two numbers .. I know what (answered by ice_water35)
I AM JUST RE-LEARNING TO DO FRACTIONS,INTEGERS,AND NOW WORKING ON ALGEBRA BUT I DONT... (answered by katie9112000)