To determine if 7861 is a prime number or a composite number, we simply look at the factors for 7861.
If the factors of 7861 are only 7861 and 1, then we know that 7861 is a prime number. Otherwise, 7861 is a composite number.
To explain better, if 7861 is only divisible by 1 and 7861, then it is a prime number, and if 7861 is divisible by more than 7861 and 1, then it is a composite number.
The factors of 7861 are as follows:
1, 7, 1123, 7861
Therefore, since 7861 is divisible by more than one and itself, the answer to the
question "Is 7861 prime or composite?" is highlighted in blue below.
composite
Is 7862 prime or composite?
OK. Now you know that 7861 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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