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The sum of two prime numbers will be composite unless one of the prime numbers is 2.

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Factoring and Multiples

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What is the prime factorization of 24

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Q: If you add a prime number to itself is the the sum composite or prime?
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Related questions

If you add a prime number to itself is the sum composite or prime?

Composite.


If you add a prime number to itself is the sum prime or composite?

Composite.


Is 7 a prime number or a composite number?

A prime number, since nothing can add up to it.It has no factors other than itself and one.


Is 327 a prime number or a composite number?

If you add the digits together, you get 12. Since 12 is divisible by 3, 327 is also divisible by 3.


Is the addition of two composite numbers also a composite number?

Not necessarily. For example 15 and 16 are composite numbers. They add to 31, which is a prime number. Similarly, the composite numbers 20 and 21 add up to 41, which is a prime number.


What kind of number do you get when you add 2 prime numbers?

composite


What is the number when you add or multiply by itself you get the same number?

Prime number


Is 267 prime or composite?

267 is a composite number - since the digits of the number add up to a multiple of three, it is divisible by 3. Its prime factorization is 3 x 89 = 267.


Is 201 a prime or composite number?

201 is a composite number because it has more than two factors. If the digits of a number add up to a multiple of three, then the number itself is a multiple of 3. 2+0+1=3, so 201 is divisible by 3 and therefore composite.


Is 417 a prime number or a composite number?

Answer:417 is not a prime number. It is a composite number.Definition:A prime number has exactly two factors: 1 (also known as unity) and itself. A composite number has more than two factors; in other words, it has at least one factor besides 1 and itself.Explanation:Any number for which the digits add to a number divisible by 3 is also divisible by 3, so it has 3 as a factor. The sum of the digits of 417 is 4 + 1 + 7 = 12, which is divisible by 3. Thus, 417 is also divisible by 3, so it is a composite number.417 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.


Is the number 4 a composite number?

Yes it is, the numbers that can add up to 4 are 1, 2 and 4. A prime number is a number that can only go to itself and 1 evenly, composite have atleast 1 other number that goes into it perfectly. (that's what she said)


Is prime number less that 9 is equivalent to composite numbers less than 12?

You may mean: 3 and 5 are prime numbers that add up to the composite number of 8


Is 57 composite or prime?

57 divided by 3 is 19. (Any number in which all the digits add up to equal a number divisible by 3 is divisible by 3. 5+7=12 which is divisible by 3.) And since 57 is divisible by more numbers than just 1 and itself it is a composite number.


Is 651 prime or composite?

Composite: 651 has 3 as one of its factors (add the digits 6+5+1=12, which is a multiple of 3).Since it has a factor (3) in addition to itself and 1, it is composite.


Is 441 a prime or composite number?

Any number whose digits add up to 9 or a multiple of 9 is divisible by 9. Since the numbers' digits also add up to a multiple of 3, 441 is also divisible by 3.A complete list of all of the positive integer factors of the number is:1, 3, 7, 9, 21, 49, 63, 147, 441441 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.


Is 57 a prime or composite number?

composite. 57 divided by 3 is 19. (Any number in which all the digits add up to equal a number divisible by 3 is divisible by 3. 5+7=12 which is divisible by 3.) And since 57 is divisible by more numbers than just 1 and itself it is a composite number.57 is a composite number since it can be divided by 3.57/3 = 19Composite.


Is 6003 a prime number or a composite number?

Answer:6003 is not a prime number. It is a composite number.Definition:A prime number has exactly two factors: 1 (also known as unity) and itself. A composite number has more than two factors; in other words, it has at least one factor besides 1 and itself.Explanation:Any number for which the digits add to a number divisible by 3 is also divisible by 3, so it also has 3 as a factor. The sum of the digits of 6003 is 6 + 0 + 0 + 3 = 9, which is divisible by 3, which means 6003 is divisible by 3. Therefore, 6003 is a composite number.


What is a number that has one prime number in it the digits add up to 19 it is a palindrome and the composite digits each have 4 factors?

838


Is 337890 a prime number?

337890 is a composite number. It is an even number greater than 2, ends with a zero and the sum of its digits add up to a number that is divisible by 3, so it is divisible by 2, 3 and 10 in addition to itself and 1.


How many district composite numbers can be formed by adding 2 of the first prime numbers?

The first two prime numbers add up to another prime number.


Is 291 a prime or composite number?

The digits of 291 add to 12 which is divisible by 3. So 291 is divisible by 3 so it cannot be prime.


Why is the number 1 not composite or prime?

By definition, 1 is not prime. A prime number has exactly two unique natural number divisors; itself and one. You can understand '1 and 1' to be two numbers, but they are not unique. The same reasoning brings us to the conclusion that 1 is not composite; a composite number can be divided without remainder by at least one integer other than itself and 1.


Can you add 6 prime numbers and get a composite number?

As long as 2 is not one of the primes that you are adding, then I can guarantee that you will get a composite. 2 is the only even prime number. Any time you add two odd numbers together, you will get an even number (which is not prime). So if you add them in pairs, you will have three even numbers, which added together result in an even number, so it is composite. If you throw in 2 as one of the primes that you're adding, then your result is odd, and I don't know what else to say about your result.


Is 57 prime composite or neither?

57 divided by 3 is 19. (Any number in which all the digits add up to equal a number divisible by 3 is divisible by 3. 5+7=12 which is divisible by 3.) And since 57 is divisible by more numbers than just 1 and itself it is a composite number.


What are all the composite numbers between 30-40 that have prime factors that add up to 12?

The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.

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