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Negative numbers don't have prime factorizations.

Q: What is a prime factorization of -42?

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21 isn't prime. The prime factorization of 42 is 2 x 3 x 7.

The prime factorisation of 42 is 2*3*7.

The prime factorization of 42 is 2 x 3 x 7.2 x 3 x 7 = 422 x 3 x 7 = 42

The prime factorization of 42 does not use exponents: 2 x 3 x 7

We're not sure what you mean by the lmm. Generally, people ask for the LCM (least common multiple) but to find that, you need at least two numbers to compare. The prime factorization of 42 is 2 x 3 x 7.

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No. Prime factorization is the method of expressing a number as the product of prime numbers. So, Prime factorization of 42 = 2x3x7

In actual fact, the prime factorization of 42 is not 21 x 2, as 21 is not a prime number. The complete prime factorization of 42 is 2 x 3 x 7.

No, 21 is not prime.

No.

21 isn't prime. The prime factorization of 42 is 2 x 3 x 7.

It is: 2*3*7 = 42

No.

42

the LCM of 42 and 126 using a prime factorization is 2 times 2 times 3

42 = 2 × 3 × 7

Prime Factorization of 42No, 21 X 2 is not the prime factorization of 42 because 21 is a composite number.2 X 3 X 7 is the prime factorization of 42 because all the factors are prime numbers.To arrive at the prime factorization in this particular case, you had to factor 21 down to its prime factors, not forgetting that one of the prime factors of 42 was already 2.2 X 21 = 423 X 7 = 21, so the prime factorization of 42 is:2 X 3 X 7No, 21 is not prime. Try 2 x 3 x 7.