SOLUTION: I have read from the list that 103 421 is a prime number
Is there a simple way to find if a number is a prime number or a composite number?
I am very weak in maths.
Thank yo
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Is there a simple way to find if a number is a prime number or a composite number?
I am very weak in maths.
Thank yo
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Question 351150: I have read from the list that 103 421 is a prime number
Is there a simple way to find if a number is a prime number or a composite number?
I am very weak in maths.
Thank you for your attention.
You can put this solution on YOUR website! Is there a simple way to find if a number is a prime number or a composite number?
I am very weak in maths.
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Let's say you want to determine if 149 is a prime number.
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1st: Find the square root of 149:
sqrt(149) = 12.2...
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2nd: See if 149 is evenly divisible by any prime less than 12.2
149/2 = 74.5 no
149/3 = 47.666 no
149/5 = 29.8 no
149/7 = 21.2.. no
149/11 = 13.54.. no
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3rd: If none of these primes divides 149, 149 is a prime number.
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Cheers,
Stan H.
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