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Yes.
1 + 2 + 9 = 12 12 is divisible by 3. If the sum of the digits of a number are divisible by 3, then the whole number is divisible by 3. 129 is a composite number because it divisible by a factor other than 1 and itself.
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∙ 12y ago
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Is 129 a prime numr?
129 is a Composite Number.
Is 129 a prime number or a composite number?
It is composite. It is divisible by 3.
What is the difference between the sum first ten prime number and first ten composite number?
129 - 112 = 17
Is 258 a composite number?
That '8' at the end of it is an immediate tip-off. That tells you that '258' is an even number. All even numbers are composite, because they're all multiples of 2. It so happens that 258 is also divisible by 3, 6, 43, 86, and 129. Any one of these makes it a composite number. But just knowing that it's an even number was enough to tell us that.
Is 284 a prime or composite number?
It is a composite number.284 is a composite number
Is 129 prime or composite?
129 is divisible by three, hence it is a composite number.
Is 129 a prime numr?
129 is a Composite Number.
Is 129 a prime number or a composite number?
It is composite. It is divisible by 3.
How do you get 129 to be prime?
129 is not a prime number because it has more than two factors and so therefore it is a composite number
Is the number 129 prime or composite?
129 is divisible by 3. 1+2+9=12 and 12 is divisible by 3. That is the rule of divisibility by 3.
What is the difference between the sum first ten prime number and first ten composite number?
129 - 112 = 17
Is 516 a composite number?
As an even number greater than 2, 516 is divisible by 2 and therefore composite. Its positive integer factors are: 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
Is 258 a composite number?
That '8' at the end of it is an immediate tip-off. That tells you that '258' is an even number. All even numbers are composite, because they're all multiples of 2. It so happens that 258 is also divisible by 3, 6, 43, 86, and 129. Any one of these makes it a composite number. But just knowing that it's an even number was enough to tell us that.
Is 515 a prime number or a composite number?
It is a composite number.
Is 284 a prime or composite number?
It is a composite number.284 is a composite number
Is 94 a prime number or is it a composite number?
94 is a composite number
Is 9a prime or composite number?
It is a composite number.
