Best Answer

- Find out all the factors for the given number
- Select the prime numbers out of them
- Try to divide the number by those prime numbers and see if any combination is possible.

Ex: 8 as a prime factor multiple = 2 * 2 * 2

Q: How do you work the prime factor problem?

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That's a lot of extra work for this problem but here goes. 3 is already prime so it doesn't really have a factor tree or prime factorization. The prime factorization of 4 is 2 x 2 which looks like this in a factor tree.42,23 and 4 have no common prime factors, so the LCM is their product, 12

a factor is a factor , a prime number is a prime number, but a prime factor is a factor which is a prime number. it has to depend on what number number. exp 13 is a prime number

Use a factor tree.

Yes. Any time three is a factor, it is a prime factor.

It is a factor of 132, not a prime factor.

All numbers have factors. Some factors are prime numbers. A prime factor is a factor that is a prime number. A common prime factor is a prime factor that appears on the list of factors of two or more given numbers.

19 is a prime factor.

35 can be a factor, but it is not prime.

If you construct them correctly, factor trees always work to determine the prime factorization of a number. Once you compare the prime factorizations of two or more numbers, it is relatively easy to find the greatest common factor of them from there.

There is no factorization. 37 is a prime number.37 is already prime. Its only prime factor is itself.

81 is not prime. Its prime factorization is 3x3x3x3.

Is 19 a composite or prime factor