Help Please!!
What is the prime factorization of 42, 68, and 105!!
(6th grade Math!!)
2007-10-11 08:07:06 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Golly, And im in 5th..
42
7 * 6
7 3 * 2 A: 7*3*2
68
2 * 34
2 2 * 17 A: 2*2*17
105
21 * 5
7 * 3 5 A:5*7*3
2007-10-11 08:32:23 · answer #1 · answered by ~D@$H~ 2 · 1⤊ 0⤋
Prime numbers are those which cannot be divided further;
that is, they are only divisible by 1 & themselves.
Examples are: 2, 3, 5, 7, 11, 13, 17, 19, etc.
So take the first problem: 42 = 2 * 21 = 2 * 3 * 7
This is not difficult, try them yourself, & pay attention in class.
2007-10-11 15:14:00 · answer #2 · answered by Robert S 7 · 1⤊ 1⤋
42 - 2*3*7
68 - 2*2*17
105 - 3*5*7
2007-10-11 15:10:45 · answer #3 · answered by Nate 3 · 2⤊ 0⤋
42
7 * 6
7 * 3 * 2
68
2 * 34
2 * 2 * 17
105
5 * 21
5 * 7 * 3
2007-10-11 15:10:44 · answer #4 · answered by mathguru 3 · 2⤊ 1⤋