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Ronald is correct, as 2x3x3x5 = 6x3x5 = 18x5 = 90. Ronald would have also been correct to put 2x32x5.

Donald is incorrect, as 32x5 = 3x3x5 = 9x5 = 45.

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โˆ™ 2010-05-28 05:47:48
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Q: Ronald writes the prime factorization of 90 as 2x3x3x5 on the board Donald write the prime factorization of 90 as 3ยฒx5 Who is correct?
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