If a number has more than two factors then it is a composite number otherwise it is a Prime number and 1 is not considered to be a composite or a prime number.
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The number 567 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 10 factors of 567 are 1, 3, 7, 9, 21, 27, 63, 81, 189, and 567.The factor pairs of 567 are 1 x 567, 3 x 189, 7 x 81, 9 x 63, and 21 x 27.The prime factors of 567 are 3, 3, 3, 3, and 7.The two distinct prime factors of 567 are 3 and 7.The prime factorization of 567 is 3 x 3 x 3 x 3 x 7 or, in index form, 34 x 7.
One is neither a prime nor a composite number. A prime number is one with exactly two positive divisors, itself and one. One has only one positive divisor which is itself so it is not prime. Furthermore, it cannot be written as a product of two factors, neither of which is itself. This tells us that one is also not composite. The other number which is neither prime not composite is Zero which has an infinite number of divisors since any nonzero whole number divides zero. Zero cannot be be written as a product of two factors, neither of which is itself, so zero is also not composite.
A composite number is a number that can be divided by multiple other integer numbers other then 1 and the number itself. For instance 4,567,278 can be divided by 2.
For each given number, add the digits. If the sum comes to nine, then it is divisible by '9'. 234 ; 2 + 3 + 4 = 9 So is dividble by '9' 345 ; 3 + 4 + 5 = 12 = 1 + 2 = 3 Not divisible by '9' 567 ; 5 + 6 + 7 = 18 = 1 + 8 = 9 so is divisible by '9'.
How about 7.9?