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.
Kid, this is for a maths competition. Imma get really pissed off if any more people decide to cheat.
No, there are composite numbers that end in every other digit.
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.
Referring to only positive integers, the smallest composite number is 4 (2 x 2). A composite number is any number that is the product of two or more prime numbers.*Referring to all integers, it would be the negative number -9, (3 x -3), which is the also the arithmetically lowest one-digit number. However, under normal definitions, negative numbers are not considered prime or composite numbers.
It is impossible to list the infinite number of prime numbers and composite numbers.
Kid, this is for a maths competition. Imma get really pissed off if any more people decide to cheat.
No, there are composite numbers that end in every other digit.
as long as your mom
Aside from 5 itself, all numbers ending with the digit 5 are divisible by 5, and therefore composite.
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.
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,.
The least 1 digit number that is composite is 4. It is because all numbers before that are prime.
Not all composite numbers are even, but all even numbers except 2 are composite.
The units digit of 858 is 8, which is even. Therefore 858 is even, i.e., divisible by 2. Therefore it is composite.
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.
Yes. All even numbers, except 2, are composite. You recognize an even number by its last digit (0, 2, 4, 6, or 8).
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.