the LCM of 42 and 126 using a prime factorization is 2 times 2 times 3
It is: 126
2 x 3^2 x 7
126 63,2 21,3,2 7,3,3,2
First, you have to find the number that is a multiple of 7. That number is 126 because 7 x 18 = 126. Then, you need to find the prime factorization. You can do that by starting with any factor pair of 126 and keep factoring the composite factors until all factors are prime. 126: 2 x 61 Since 2 and 61 are prime, that is the prime factorization of 126.
2 x 32 x 7 = 126
the LCM of 42 and 126 using a prime factorization is 2 times 2 times 3
126 o:-)
It is: 126
2 x 3^2 x 7
126 = 2 × 32 × 7
2x3x3x7
To find the prime factorization of 126 using the ladder method, we start by dividing 126 by the smallest prime number, which is 2. This gives us 63. Then, we divide 63 by 3, which gives us 21. Continuing this process, we find that 21 can be divided by 3 again to get 7. Therefore, the prime factorization of 126 is 2 x 3 x 3 x 7, or 2 x 3^2 x 7.
126 63,2 21,3,2 7,3,3,2
42 126 ^ ^ 7x6 14x9 ^ 3x2 ^ ^ 7x2 3x3 7x3x2=LCM is 42
2 x 32 x 7 = 126
That's not a prime factorization because 9 isn't prime, but it does represent the number 126.