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Q: What the prime factor of 126?

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126 and 49 are not relatively prime because they have 7 as a common prime factor.

2 x 3 x 3 x 7 = 126

126 63,2 21,3,2 7,3,3,2

Use a factor tree. 126 63,2 21,3,2 7,3,3,2

126=2*63 63=3*21 21=3*7 126=2*3*3*7

Factor tree:126|63 and 2|21 and 32 x 3 x 21 = 126

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.

The greatest common factor of 126 and 144 is 18. The prime factorization of 126 is 2*3*3*7. The prime factorization of 144 is 2*2*2*2*3*3 The GCF of 2*3*3 = 18

13 is not a factor of 126.

The greatest common factor of 126 and 252 is 126.Always start with finding out if your lower number is a factor of the higher number. Since 126 is a factor of itself (1, 126) and a factor of 252 (2, 126) it is your GCF.

The prime factors of 126 are 2, 3 and 7

The greatest common factor for 126 and 2394 is actually 126. This is because 2394 divided by 126 is 19, which is a whole number. Of course, 126 is also a factor of itself.

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