To determine if 7860 is a prime number or a composite number, we simply look at the factors for 7860.
If the factors of 7860 are only 7860 and 1, then we know that 7860 is a prime number. Otherwise, 7860 is a composite number.
To explain better, if 7860 is only divisible by 1 and 7860, then it is a prime number, and if 7860 is divisible by more than 7860 and 1, then it is a composite number.
The factors of 7860 are as follows:
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3930, 7860
Therefore, since 7860 is divisible by more than one and itself, the answer to the
question "Is 7860 prime or composite?" is highlighted in blue below.
composite
Is 7861 prime or composite?
OK. Now you know that 7860 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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