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Prime Numbers

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.

500 Questions

Is 222222 a prime number?

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Asked by Wiki User

NO!!! Because '222222' will divide by '2' the lowest factor' .Hence

2)222222 = 111111

3)111111 = 37037

7)37037 = 5291

11)5291 = 481

13)381 = 37

37)37 = 1

NB The prime numbers, 2,3,7,11 & 37 have been used once to find the factors of 222222.

NNB Always divide by the prime numbers until it is reduced to '1'.

NNNB '5' as a prime number, has not been used becaause none of the composite numbers end in '5'.

What is prime factor tree for 13?

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Asked by Wiki User

'13' is a prime number, so there is no factor tree.

However, to test , we can say

13)13 = 1

When reduced to '1' the factoring is complete.

Prime numbers are 2,3,5,7,11,13,17,19,23,29....

This goes to infinity, however, the above list is primes to '30'.

Are prime numbers allowed in factor trees?

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Asked by Wiki User

YES!!!

Always use prime number when dividing down to find the factors of a number.

e.g.

Find the factors of '51'

Since '2' is the lowest prime , use '2' . However, '51' is not an even number so cannot use '2'

So try the next prime number '3'.

3)51 = 17

Since '17' is a prime number divide into itself

17)17 = 1 When reduced to '1' , you have all the prime number factors. In this case '3' & '17'.

Is 39 a prime o composite?

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Asked by Wiki User

39 is Composite , because it is the profuct of 13 x 3 = 39 .

Is 2005 a prime or composite?

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Asked by Wiki User

Definitely COMPOSITE. Reason any number anding in '5' will divide by '5'.

What are the prime numbers between 16 and 32?

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Asked by Wiki User

The question is:

What are the prime numbers between 16 and 32?

We must first remember what a prime number is. A prime number is a number that can only be divided by 1 fand also by itself. So the numbers between 16 and 32 that can only be divided by 1 and itself are 17, 19, 23, 29, and 31.

What are some examples of what sociology is?

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Asked by Wiki User

Sociology involves studying how societies are structured, how they function, and how individuals interact within them. Examples of sociological topics include social inequality, culture, family dynamics, education systems, and the impact of technology on society. Sociologists analyze these aspects to understand social behaviors, relationships, and institutions.

I don't know how to talk to him about his compulsive lying im afraid it will make things worse between him and me and i dont need that at this moment we are going through enough as it is he needs help?

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Asked by Wiki User

It's important to approach the conversation with understanding and compassion towards his struggles. Express your concerns about his compulsive lying and offer support in seeking help. Emphasize that addressing the issue can strengthen your relationship and lead to healthier communication in the long run.

What is the sum of 328 to the nearest hundred?

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Asked by Wiki User

The sum of 328 rounded to the nearest hundred is 300.

Is 111111 prime?

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Asked by Wiki User

While 111,111 is not a prime number because it is able to be divided by 11 to equal 10,101, then 101 is.

What are all the prime numbers from 1-14?

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Asked by Joseph5280

The prime numbers from 1 to 14 are 2, 3, 5, 7, 11, and 13.

Find the largest prime number generated by Euler's formula?

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Asked by Wiki User

The largest prime number found using Euler's formula, known as Euler's prime, is 2^2^5 + 1, which equals 4294967297. This number was discovered by Euler in the 18th century, and it remained the largest known prime for many years.

How many multiples can a number have?

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Asked by Wiki User

A number can have an infinite number of multiples since multiples are obtained by multiplying the number by a whole number.

What are all the twin primes from 1 to 100?

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Asked by Wiki User

The twin prime pairs from 1 to 100 are (3, 5), (11, 13), (17, 19), (29, 31), (41, 43), (59, 61), (71, 73), (101, 103).

What is the prime factorization of 252?

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Asked by Wiki User

The "shortened" prime factorization of 252 is 22*32*7; the "longer" is 2*2*3*3*7.

The difference between an exponential number and a power of 10?

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Asked by Wiki User

An exponential number is any number raised to a power, while a power of 10 specifically refers to numbers of the form 10^n, where n is an integer. So, all powers of 10 are exponential numbers, but not all exponential numbers are powers of 10.

What are some examples of monera?

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Asked by Wiki User

Examples of monera include bacteria and archaea. These organisms are prokaryotic, single-celled microorganisms that lack a nucleus and membrane-bound organelles. They play important roles in various ecosystems, from soil to human gut microbiota.

What is a prime number that is one more than a square number?

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Asked by Wiki User

#2. since 1 is a square number. and a prime number is positive with only two positive natural number divisors: 1 and itself.

What prime numbers are greater than 10?

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Asked by Wiki User

11,13,17,19...

What number is greater than -1 but less than 0?

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Asked by Wiki User

technically it is 0.5 because then thay said less than 1 but greater than 0 so if u do 0.5 it is inbetween

Which a prime number 9 22 27 29?

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Asked by Wiki User

'29' is a prime .

The other are composite

9 = 3 x 3

22 = 11 x 2

27 = 9 x 3

'29' being a prime , cannot be split up like the other numbers.

What equals 103?

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Asked by Wiki User

1 x 103, 103 x 1 = 103

What is the sum of the prime factors of 51?

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Asked by Wiki User

It is: 3+17 = 20

What is a common prime factor of 21 and 411?

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Asked by Wiki User

It is 3 that is a common prime factor to both numbers

Prime numbers less than 21?

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Asked by zion mendez