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Q: What are prime and composite numbers and can you tell me in a easy way to understand?

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That is easy, 140 is prime.

Composite Numbers121, 264 and 144 are composite numbers. It's easy to determine that 264 and 144 are composite because both are even numbers that are divisible by 2. Since that means that they are divisible by at least one number in addition to "1 and itself," they are composite.121 appears like it might be prime, but 11 times 11 equals 121. Since 11 is a factor of 121, it is also a composite number.

A composite number is an integer that is exactly divisible by at least one factor other than 1 and itself. There is an infinite number of composite numbers.A prime number on the other hand can only be divided by 1 and itself. It's easy enough to infer that a composite number can be written as a product of prime factors:Example2380 = 2 x 2 x 5 x 7 x 17The first few composite numbers are:4,6,8,9,10,12,14,15,16,18,20.Numbers which can be divided by other numbers besides 1. Numbers with factors besides 1 and themselves. Numbers which are not prime. 91 is composite because it is 13 x 7. But 41 is not composite because it is only 41 x 1.(of an integer) being the product of two or more factors greater than one; not prime.

Composite. Since it is very easy to decipher if 34 is prime or composite, I assume you are unfamiliar with the definitions of prime and composite. A prime number is a number that has only two factors: 1 and itself. A composite number is a number that has more than 2 factors: 1, itself, and other(s). You can immediately tell that 34 is composite because it is even, and the number two is the only EVEN number that is prime.

While there are many ways to determine whether a number is prime or composite, there are easy ways to check numbers up to 100:Try factoring the number. A prime numbers has exactly two factors, 1 and the number itself, and a composite number has one or more factors in addition to 1 and the number itself.All numbers greater than 2 and less than 49 are composites if they are even numbers, if they are multiples of 3, or if they end in 5 or 0.Composite numbers 8 to 100 include the above and all numbers divisible by 7.Test larger numbers by trial division by larger primes that are less than the square root of the number.

That's pretty easy to figure out. Any number that has a 5 or 0 in the ones place is divisible by 5. Which means it has to be composite.

Positive integers with more than two factors.

Composite numbers are used to factorize a number into smaller. It makes calculation easy for the person.

All rational numbers can be expressed as fractions.

A composite number is an integer having more than two factors that are whole numbers.(Factors are two numbers that multiply together to give the number.) Some examples may help to get things in focus.2 has only two factors (1, 2) so it is not a composite number, it is a prime number.3 has only two factors (1, 3) so it is not a composite number, it is a prime number.4 has three factors (1,2,4) so it is a composite number.5 has only two factors (1,5) so it is not a composite number, it is a prime number.6 has four factors (1,2,3,6) so it is a composite number.Another description:A composite number is an integer that is exactly divisible by at least one factor other than 1 and itself. There is an infinite number of composite numbers. It is not a prime number.A prime number on the other hand has two distinct factors and can only be divided by 1 and itself.It's easy enough to infer that a composite number can be written as a product of prime factors:Example 2380 = 2 x 2 x 5 x 7 x 17The Fundamental Theorem of Arithmetic states that any integer greater than 1 can be written as a unique product of prime numbers. This is a very important theory in math!The first few composite numbers are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20.A number that is divisible.Example: 145 is a composite number because you can divide it by 5 and other numbers.

no, its not a composite because it can only be muliplied by 11 an easy way to find out is by any # that has 2 of the same for example 11,22,33,44,55,66,77,88,99,and on. well its no 22 is a prime

2, 3Those two are consecutive, natural and prime numbers! It's as easy as one, two, three! (Pun intended)

That's easy, its 2, 3, 5, 7, and 11

A prime number is only divisible by itself and the number one. Prime numbers have to be odd (except for the number 2, which is prime). So smaller numbers like 7 are usually pretty easy to determine if they are prime. But the higher the number value gets, the more complicated it is to determine. So people post a list of prime numbers on the internet so you'll know what the prime numbers are.

its preety easy a prime number is a number that has no factors.there are no numbers you can mulitply together to get that number.

Many current cryptographical methods (encoding methods) are based on the difficulty of factoring large numbers. Roughly speaking, you multiply two large prime numbers together. Finding the code is equivalent to factoring the result, which is very difficult. However, if somebody knows the code (the original factors), it's easy to check whether their product is equal to the given number.

693 can be divided by 3 ==> composite number. This is an easy prime because if you make a sum of all the digits: 6 + 9 + 3 = 18, if you can devide this sum by 3 than you can also divide the original number by 3.

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Prime numbers are easy. All prime numbers only have two factors, one and themselves. Composite numbers are trickier. Let's take 40 as an example. You know that 40 is divisible by 1 (because everything is) 2 (because it's even) 4 (because the last two digits are a multiple of 4) 5 (because the last digit is a 0) Divide 40 by 1, 2, 4 and 5 and get 40, 20, 10 and 8 respectively. Arrange them in ascending order. 1, 2, 4, 5, 8, 10, 20, 40 are the factors of 40.

very easy, composite why because its two in the end so its an even number which can be divided by 2.

891 is a composite number. Its factors are 1, 3, 9, 11, 27, 33, 81, 99, 297, and 891. An easy check for some numbers greater than 3 is by adding their digits. If the sum of the digits is 3 or a multiple of 3, the number is a composite. The digits of 891 add up to 18, which is a multiple of 3.

Another name for a graph that is a representation of numbers is a chart. The chart makes the numbers easy to understand upon a glance.Ê

429 is a composite number because it is divisible by 3 in addition to 1 and itself. It is easy to tell that it is divisible by three because the sum of its digits is divisible by 3: 4 + 2 + 9 = 15.

471 can be divided by 3 ==> composite number. This is an easy prime because if you make a sum of all the digits: 4 + 7 + 1 = 12, if you can devide this sum by 3 than you can also divide the original number by 3, else you can't devide this number by 3.

Prime numbers form the basis of most encryption algorithms, which are used to protect sensitive data such as credit card information, passwords, etc. Any natural number greater than one can be written as a product of prime numbers. The prime factorization is unambiguous, that is, for any natural number N, there is exactly one product of prime numbers. Multiplying prime factors is quick and easy. For example, the product of the two prime numbers 29 and 31 is 899. It is much harder to take 899, and find its prime factors. For very large numbers, such as 150-digit prime numbers, finding the prime factorisation is near impossible - and it is this difficulty that forms the basis of encryption algorithms.