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Earn +20 ptsQ: Are prime numbers always closed under addition?
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Are prime numbers closed under addition?
no, not all prime numbers are closed under addition. why? because, when you add 2 prime numbers you will not always get a prime number. example: 5+3= 8 5 and 3 are prime numbers but their sum is 8 which is a composite number..
Are composite numbers closed under addition?
No, they are not. You can add two composite numbers, 15 and 14 for example, and get a sum, 29, that is prime.
Do 2 prime numbers always get a composite number?
The answer depends on how the numbers are combined: addition, subtraction or multiplication.
Are the prime numbers closed for subtraction?
No.
Are prime numbers closed under subtration?
No.
Are the prime numbers closed under multiplication?
No.
Are co prime numbers always or never prime numbers?
Sometimes.
What type of numbers can you multiply to always find the LCM?
prime numbers, co-prime numbers
Are two prime numbers always sometimes or never relatively prime?
Always
Are prime numbers is closed under multiplication?
No. The product of two primes cannot, by definition, be a prime.
Can any two prime numbers be relatively prime?
It is, and always is relatively prime.
Is the number of two prime numbers prime?
Combining prime numbers other than 2, whether through addition or multiplication, will result in a composite number.
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