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What is the prime factor decomposition of 21?

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Anonymous

∙ 12y ago
Updated: 8/20/2019

1, 3 and 7

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Wiki User

∙ 12y ago
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What factor of 21 is a prime factor?

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Prime factorization for 84?

The prime factor decomposition of 84 is: 2 x 2 x 3 x 7 If you want to see my working (in case I made a mistake): 84/2=42 (42 is not prime), 42/2=21 (21 is not prime), 21/3=7 (7 is prime, so stop here) factors: 2,2,3 and 7


Is 21 a prime factor?

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3 is a prime factor of 12 and of 21.


What is the composite number between 20 and 50 whose prime factor is 21?

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What is the prime factor decomposition of 68?

2 x 2 x 17 = 68


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2 x 3 x 7 = 42

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