Thursday, December 31, 2009

What are the prime numbers to 36 and 52?

i forgot how to find prime numbers, please explain what the answer is and how you got it.What are the prime numbers to 36 and 52?
37, 41, 43, 47,


Make sure that there are no other factors that you can multiply the number with except 1 and itself.


Example: 6 is not a prime number because there are others factors that you can multiply it with aside from 1 and itself. a.) 6 x 1 b.) 2 x 3


2 is a prime number because its only factors are 1 and 2 (1 x 2)What are the prime numbers to 36 and 52?
As the other posters mentioned, a prime number is a number divisible by 1 and itself. With that being said, here's the answer to your question:





36 = 3 x 12 -%26gt; 12 = 3 x 4 -%26gt; 4 = 2 x 2


36 = 3 x 3 x 2 x 2





Break down each factor into their respective multiples. When you can't go any further, you're left with the prime numbers of that number. In this case 2 and 3 are the prime numbers for 36. (1 is a given.)





52 = 2 x 26 -%26gt; 26 = 2 x 13


52 = 2 x 2 x 13





Here 2 and 13 are the prime numbers.





If you're not sure how to break down the numbers, use the basic rules to get started:


- Any even number can be divided by 2


- If the number ends in 0 or 5, it can be divided by 5


- If the digits add up to 3, 6, or, 9, then the number is divisible by 3. (Examples:


12: 1 + 2 = 3 -%26gt; 12 / 3 = 4


39: 3 + 9 = 12 -%26gt; 1 + 2 = 3 -%26gt; 39 / 3 = 13





Hope this helps.
Here are the primes to 59:


2,3,5,7,11,13,17,19,23


29,31,37,41,43,43,59





I got them from a table ;)





But the way you find them is to find a number that has only 2 factors, itself and 1.





For example, 10 is not a prime because 10 = 5 x 2 - NOT only itself and 1





But 11 is prime because the only factors are 11 x 1
Prime numbers =no. can only be divided by itself %26amp;1


if no.=even then composite unless its 2


36=no


37yes


38no


39/3 no


40no


41yes


42no


43yes


44no


45/5 no


46no


47yes


48no


49/7 no


50no


51/3 no


52no


Numbers are 37,41,43,47
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47鈥?br>

93,97,101


Your answer is ; 37,41,43,47,
36divide by 2 find 18 divide by 2 find 9 divide by 3 find 3 and 3 is prime


so 36=2*2*3*3 or 2^2*3^2





52 divide by 2 find 26 divide by 2 find 13 and 13 is prime so 52=2^2*13
37, 41, 43, 47, not divisible by any other.

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