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Prime number test: To determine if any number is prime, one method is to check if it can be divided by any of the prime numbers less than its square root. Because the square root of 1000 is approximately 31.6, any 3 digit number (100 to 999) needs to be tested for divisibility only with the prime numbers 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31.

The highest prime number that is the square root of a number less than 743 is 23. Since no prime number from 2 to 23 (2, 3, 5, 7, 11, 13, 17, 19, and 23) divides evenly into 743, then 743 is a prime number.

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Q: How can you figure out that 743 is a prime number?
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How is 743 a prime number?

743 is a prime number because its only factors are 1 and 743.


Is 743 prime and why?

743 is a Prime Number because its only factors are 1 and itself.


What are the factors of743?

1 and 743. (743 is a prime number).


Why is 743 a prime?

743 is a prime number because it has only 2 factors which are itself and one


What are the factors of 743?

743 is a prime number and means it can only be divided by itself and the number 1.


Which is a prime number 465 822 600 743?

It is: 743 because it only has two factors


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600 HAHA, i love whoever posted 600 and i laugh at whoever asked this question... 743 is the prime...


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Well, lets first ask, What is a Prime Number? A Prime Number is a number that can only be multiplied by 1 and itself. So how do you find out what is a prime number? This is an example of a prime number:17. Try to multiply numbers and see if you get 17. You won't. 17 can only be multiplied by 1 and itself. So that's why it is a prime number. Pick a number in the future and try to multiply to it. If you don't get that number as an answer, its a prime number, if you get it as an answer, it is NOT a prime number.


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