Is 3 a prime number or not?
Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.
Did 9 is a prime number?
Is 9 a prime number? "No, 9 is not a prime number." Since 9 has more than 2 factors i.e. 1, 3, 9, it is a composite number.
Why is 9 not prime?
No, 9 is not a prime number. A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers other than the pair 1 and itself. 9 can be expressed as a product of the numbers 3 and 3 as 9 = 3 x 3. So it's not a prime number.
Is 3 a prime factor of 9?
Prime Factors of 9
From the factor tree we can see prime factorization of 9 is 3 × 3 = 3\(^2\). This means, 3 is the only prime factor of 9.
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