To determine if 850 is a prime number or a composite number, we simply look at the factors for 850.
If the factors of 850 are only 850 and 1, then we know that 850 is a prime number. Otherwise, 850 is a composite number.
To explain better, if 850 is only divisible by 1 and 850, then it is a prime number, and if 850 is divisible by more than 850 and 1, then it is a composite number.
The factors of 850 are as follows:
1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850
Therefore, since 850 is divisible by more than one and itself, the answer to the
question "Is 850 prime or composite?" is highlighted in blue below.
composite
Is 851 prime or composite?
OK. Now you know that 850 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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