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Because you can know if your answer will be a whole number when you divide.
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How do you figure out prime numbers not knowing there factors?
But you do know the factors of prime numbers. Every prime number has two factors: one and the number itself.
How can knowing the divisibility rules help to determine if a number is prime or composite?
Knowing the divisibility rules will help you by being able to recognize if a number has factors (other than one and itself) which are covered by the rules. This will save actually having to start doing divisions.
Is a 135 prime?
A Prime number is a number that is not divisible into whole numbers, except by itself and one. 135 is not a prime number as it is divisible by 5 with a ressulting quotient of 27.
Why number 73 is important in mathematics?
It is not particularly significant, other than being a prime.
Why 7 is not a prime number?
7 is a prime number!
How do you figure out prime numbers not knowing there factors?
But you do know the factors of prime numbers. Every prime number has two factors: one and the number itself.
Why is is important that 1 is not a prime number?
It important that 1 is not prime because a quote says: "A prime number is a natural number that has exactly two different natural number factors. and so i say 1 is not a prime because a prime number has 2 factor 1 and it self and 1 dose not.
Why is it important to know if a number is prime or composite?
A prime number can never be composite in any case. There is an exception for 2 which is both.
What is the prime number out of and Y?
It is not possible to answer the question without knowing what is missing between "of" and "and" in the question and also the value of Y.
What is the prime number greater than 1 and less than 12?
There are several so there is no way of knowing which ONE you mean.
Why is the prime meridian line so important?
It's a reference point. The sun is highest in the sky at 12 noon. knowing that you can work out how far away from the prime meridian you are if you have an accurate clock.
With a given big integer number which is the product of two prime numbers how do you find them?
First write a program to generate the prime number. After one prime number was generated, divide the big int number by the prime number. If the remainder is zero then quotient is the second prime number ( also it is important to check whether the quotient is prime number or not because sometimes you will get wrong answer). Repeat the process until you get the result.
Important concept of prime factorization?
The most important concept is that, apart from their order, the prime factorisation of any number is unique. This is known as the Fundamental Theorem of Arithmetic.
Which type of number is most important to factor?
Composite numbers.
'what is a prime number'?
A prime number is a number that has exactly two factors: 1 and itself. All whole numbers greater than 1 are either prime numbers or can be written as the product of prime numbers. There are an infinite number of prime numbers, but they occur less frequently among larger numbers. Prime numbers are important in cryptography and number theory.Read more: http://wiki.answers.com/Q/FAQ/7008#ixzz1LVq5EURw
How can knowing the divisibility rules help to determine if a number is prime or composite?
Knowing the divisibility rules will help you by being able to recognize if a number has factors (other than one and itself) which are covered by the rules. This will save actually having to start doing divisions.
How can knowing whether a number is prime or composite help as you work in math?
Among other things, a knowledge about prime numbers and factoring can help you in finding least common multiples and greatest common factors.
