Question 161114: Determine whether the folowing interger is prime or a composite by dividing by prime numbers. If the integer is composite, find at least 2 pairs of factors whose product is the integer.
823
This is not in a Textbook. On a disk.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Determine whether the folowing interger is prime or a composite by dividing by prime numbers. If the integer is composite, find at least 2 pairs of factors whose product is the integer.
823
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If you divide it by all prime numbers from 2 to 29, you'll see if it's evenly divisible by any of them.
Try 2, 3, 7, 11, 13, 17, 19, 23, and 29. That's only 9 to try.
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