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Which one of these are prime numers 21 47 87 or 4?

Updated: 8/18/2019
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13y ago

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47 is a Prime number

21 & 87 divisible by 3, and 4 is divisible by 2

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13y ago
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Q: Which one of these are prime numers 21 47 87 or 4?
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Which is prime 21 33 47 78?

47 is a prime number.


What are prime number greater than 21?

The prime numbers greater than 21 are 23, 29, 31, 37, 41, 43, 47, etc.


Is 47 a prime number or not?

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What are the factors and prime factors of 987?

987 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 987 are 1, 3, 7, 21, 47, 141, 329, and 987.The factor pairs of 987 are 1 x 987, 3 x 329, 7 x 141, and 21 x 47.The proper factors of 987 are 1, 3, 7, 21, 47, 141, and 329 or,if the definition you are using excludes 1, they are 3, 7, 21, 47, 141, and 329.The prime factors of 987 are 3, 7, and 47.The distinct prime factors of 987 are also 3, 7, and 47, since there is no repetition of factors.The prime factorization of 987 is 3 x 7 x 47.


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