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18 September, 09:40

Find the prime factorization of each composite number 45

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Answers (2)
  1. 18 September, 10:02
    0
    Prime factorization means to factor the composite number into only prime numbers.

    So, 45=9x5=3x3x5 ... which are all prime.

    So your answer is 3, 3, 5
  2. 18 September, 11:27
    0
    The prime factorization of 45 is 45 = 5 x 3 x 3 OR 5 ⋅ 3 ²

    Step-by-step explanation:

    We could also write this as:

    5 ⋅ 3 ²

    From the multiplication table, we know that

    45 = 5 ⋅x9 where 5 is prime, but 9 is not

    The prime factorization of 9 is 3 ⋅x3,

    so the prime factorization of 45 is 45 = 5x 3x 3

    OR

    5 ⋅ 3 ²
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