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Q: What are five prime numbers using 0-9 only once?

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None.

2,5,13,647,809

A sudoku box cannot contain 5 prime numbers, so it is obviously an error. And once you accept that the numbers in the box are simply nonsense numbers, anything is possible.

There are none.Any number made by using the digits 0 to 9 once is divisible by 9 and so not a prime.There are none.Any number made by using the digits 0 to 9 once is divisible by 9 and so not a prime.There are none.Any number made by using the digits 0 to 9 once is divisible by 9 and so not a prime.There are none.Any number made by using the digits 0 to 9 once is divisible by 9 and so not a prime.

Once your prime factorization is complete and you discover that there are no numbers in common, the GCF is one and the numbers are declared to be relatively prime.

61

You need at least two numbers to find a GCF. The prime factorization of 99 is 3 x 3 x 11. Once you have the other one, you can compare.

The way to know the Prime Numbers is to find out if they can only Multiplied Once ,The way to know Composite Numbers is to find out if they can be Multiplied Twice

The 1870s. 1871, 1873, 1877, and 1879 are all prime numbers.

9

Only once - thanks to the unique prime factorisation theorem.

3

It is: 401

The answer depends on the numbers on the spinner.The answer depends on the numbers on the spinner.The answer depends on the numbers on the spinner.The answer depends on the numbers on the spinner.

to find a prime number, you need to find the factors for the numbers. once you have found the factors, you can determine which are prime. if the number only has 2 factors,1 and itself, it is prime. all other numbers are composite, except for 1. 1 is special. 1 only has one factor, 1.

No difference. Once you've found the factors of a number, the prime numbers on that list are the prime factors.

5*4+3+2

only using the numbers once

3! = 6.

Using each one only once, 5*4*3*2*1 = 120 of them.

I am assuming you are referring to a normal 3x3 sudoku grid, where you can only use the numbers 1-9 once in the grid, and by prime number you mean the 3digit number across and down the grid must be prime? For a number to be prime, it must end in 1, 3, 7 or 9. There are 5 places on the Sudoku grid for a number to finish and as you can only use a number once in sudoku you have one place left where the number can not be prime. This means the most you can have is 5 prime numbers.

You don't find the prime factorization by using exponents, they're just a shorthand for notation once you find it. The prime factorization of 900 is 22 x 32 x 52

(5+7)*(5-3)=12*2=24

Other than 5, they are multiples of 5 and have more than two factors.

998,000

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