Prime Factorization

What is the prime factorization of 1,521? Please show work. Thanks!!

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  1. 1521 = 3 x 507
    = 3 x 3 x 169
    = 3 x 3 x 13 x 13

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    posted by Reiny
  2. THANK YOU SOOOO MUCH!

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  3. 150=2*3*5*5

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    posted by annia

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