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This question relates to a problem in the Maths Challenge for Young Australians and students are not allowed to seek answers in this manner. There is no point in doing the challenge if all you are getting is other people to answer the questions for you. Eventually, if you cannot do the problem, your teacher will have the correct solutions and can talk you through it. There is nothing to be gained by cheating as there are no prizes.

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Q: Why are all 4 digit fredholl numbers composite?
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Why are all 6 digit fredholl numbers prime?

Kid, this is for a maths competition. Imma get really pissed off if any more people decide to cheat.


Do all composite numbers end in 2?

No, there are composite numbers that end in every other digit.


What are all the three digit composite numbers?

as long as your mom


Why are all whole number with 5 in the ones place composite?

Aside from 5 itself, all numbers ending with the digit 5 are divisible by 5, and therefore composite.


What is the greatest even 3-digit composite number?

Work back from 999:999 is odd ... no.998 is even and divisible by 2, so it is composite. (All even numbers are composite!)Further Information:-All even numbers are composite except for 2 which is a prime number.


What is the digit in the units place of a number is 5 if the no lies between 150 and 200 will be composite or prime?

For any integer greater than 5, where the units digit is 5 then that number can be expressed as the product of n and 5. As such, the number is composite. Therefore all numbers in the range 150 to 200 that have a units digit of 5 are composite,.


What is the least number of 1 digits of composite?

The least 1 digit number that is composite is 4. It is because all numbers before that are prime.


Are composite numbers even numbers?

Not all composite numbers are even, but all even numbers except 2 are composite.


Is 858 prime or composite?

The units digit of 858 is 8, which is even. Therefore 858 is even, i.e., divisible by 2. Therefore it is composite.


What are 25 numbers which are consecutive composite numbers?

The 25 numbers from 26! + 2 to 26! + 26 are all composite. Thus, the 25 numbers from 403,291,461,126,605,635,584,000,002 to 403,291,461,126,605,635,584,000,026 are all composite.


Is 122 a composite number?

Yes. All even numbers, except 2, are composite. You recognize an even number by its last digit (0, 2, 4, 6, or 8).


How many positive prime numbers have a ones digit of 5?

Only one positive prime number has a 5 in the ones digit. That prime number is 5. All other numbers with a 5 in the ones digit are composite because they will be divisible by 5.