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How do you determine whether a number is prime or composite?
Negative numbers, zero, and one are neither prime nor composite. See the related questions as to an explanation why. See whether the number is divisible by 2, and by all odd numbers up to the square root of the number. For numbers up to 100, it is enough to check the factors 2, 3, 5, and 7. For higher numbers you need to check more factors. For very large numbers (for example, hundreds of digits), more efficient methods are known, but those methods are also more complicated. Check the related link for a number factoring calculator.
How do you do division of large numbers?
A calculator.
Do large numbers give longer number chains?
Most of the time, but large prime numbers still have only two factors.
Which 2 digit numbers have the most factors?
Well, honey, the 2-digit number that takes the cake for having the most factors is 60. It's like the social butterfly of numbers, with a whopping 12 factors strutting its stuff. So, if you want a number that's popular with all the other numbers, 60 is your go-to.
How Given any two numbers which is greater the LCM of the numbers or. The GCF of the numbers why?
The LCM will never be less than the GCF. To be a multiple of both numbers, the LCM will have to be equal to or greater than the larger number. To be a factor of both numbers, the GCF will have to be equal to or less than the smaller number. The only problem comes when you're comparing a number to itself. The LCM of 10 and 10 is 10. The GCF of 10 and 10 is 10.
What are the uses of composite number?
Public key encryption is based on composite numbers. In fact it is based on composite numbers which are the product of two very large prime numbers.
Why do you think prime numbers would be more useful for the creation of codes than composite numbers?
Actually it is composite numbers that are used - products of two very large primes.
To find answers to composite numbers fast?
There may not be any fast methods. In fact, composite numbers which are the product of two very large primes are used for public key encryption. This depends on the fact that there is no fast answer to factorising composite numbers.
Are there any number that are neither prime nor composite?
Yes. All prime numbers and composite numbers are positive integers, or whole counting numbers. That leaves infinitely many numbers that are neither prime nor composite. If you intended to narrow the scope of your question to the whole counting numbers or to the positive integers, then there are NO such numbers that are neither. A counting number, however large, will be either prime or composite.
Why are prime numbers more useful for the creation of codes than composite numbers?
Actually both are important. Public encryption is based on the product (and so a composite) of two very large prime numbers.
How can you tell if a number is a composite number?
Try dividing by some numbers. The larger the number, the more numbers you have to divide by. It is enough to test division by 2, and all the odd numbers up to the square root of the number. For very large numbers, this is not efficient. There are more efficient methods, but they are also more difficult to understand.
Is 1106 a prime number?
No. 1106 is composite, as are all even numbers. 1106 = 2 x 7 x 79 (a large prime)
Why are prime numbers more useful than composite numbers in cryptography?
This question is based on a misunderstanding. Most cryptography is based on numbers that are products of two very large prime numbers. Being the product of two primes means that these numbers are composite - not prime!
Why do you use large prime numbers?
Large primes numbers are used in public key encryption systems as when multiplied together to create an even larger composite number it is extremely difficult to factorise this number into its component primes - this is what gives the encryption its strength. It is the knowledge of the large prime factors of the even larger composite number which allows the encryption and decryption keys to be determined; they are dependent on each other and the prime factors.
Why did large numbers of roman small farmers move to the cities?
They could not compete with large landowners who had slaves
What is the sum of the large prime less than 100 and the smallest prime greater than 100?
97 plus 101 198
What are the numbers on a tape measure?
The large numbers represent inches on a standard tape. Depending on the scale, smaller numbers could be in 16ths or 32s of an inch.
