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Just by looking at it, without applying any exotic tools or analytical procedures, we can see that it's divisible by 5 (because it ends in 5), and it's also divisible by 3 (because the sum of its digits is divisible by 3). So we already know that it can't be prime, regardless of how many other factors it may have.
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∙ 14y ago
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Is 1005 a prime or composite?
Composite. All positive, whole numbers greater than five and ending in 0, 2, 4, 5, 6 or 8 are composite.
Is 293 a composite or a prime number?
Is 293 a composite or a prime number?
Is 163 prime or composite?
The number is not COMPOSITE. Instead, it is a prime number.
Is 432 composite or a prime number?
Composite (the only even number that is prime is2).
Is the number 36 prime or composite?
Composite
Is 1005 a prime or composite?
Composite. All positive, whole numbers greater than five and ending in 0, 2, 4, 5, 6 or 8 are composite.
Is 1029 a prime or composite?
It is not a prime number, it is a composite number.
Is 17 prime or composite number?
It is prime
Is 86 a prime or composite number?
86 is not a prime number, so is a composite.
Is 211 prime or composite number?
It is a Prime number, and therefore not a composite number.211 is a prime number.
Is 168 a prime or a composite number?
No 168 is not a prime number it is a composite number
Is 293 a composite or a prime number?
Is 293 a composite or a prime number?
Is 163 prime or composite?
The number is not COMPOSITE. Instead, it is a prime number.
What is the definition of a prime and a composite number and a composite number and a composite number?
A prime number has two factors, a composite number has more than two.
Is 432 composite or a prime number?
Composite (the only even number that is prime is2).
Is seventeen a prime or composite number?
Prime.
Is 555 a prime or composite?
It is a composite number.
