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Mathematics 18 Online
OpenStudy (anonymous):

Which of the following is true? 5 is a prime number because one and five are its only factors. nineteen is a composite number because it is only divisible by one and itself. twelve is a prime number because it is divisible by 4. twenty-five is a composite number because fifty-two is a prime number.

OpenStudy (anonymous):

@ganeshie8

ganeshie8 (ganeshie8):

can you tell quick the things you know about prime numbers ?

OpenStudy (anonymous):

ok umm

OpenStudy (anonymous):

A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number.

imqwerty (imqwerty):

http://prntscr.com/8gwwa5

ganeshie8 (ganeshie8):

good, so what are the first few prime numbers ?

OpenStudy (anonymous):

2,3,5,7,11

ganeshie8 (ganeshie8):

Nice, so you know that 5 is indeed a prime number

OpenStudy (anonymous):

yes

ganeshie8 (ganeshie8):

look at the first option is the justification given good enough ?

OpenStudy (anonymous):

Yes

ganeshie8 (ganeshie8):

so thats ur answer

OpenStudy (anonymous):

ok thank you

ganeshie8 (ganeshie8):

np

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