To determine if 7700 is a prime number or a composite number, we simply look at the factors for 7700.
If the factors of 7700 are only 7700 and 1, then we know that 7700 is a prime number. Otherwise, 7700 is a composite number.
To explain better, if 7700 is only divisible by 1 and 7700, then it is a prime number, and if 7700 is divisible by more than 7700 and 1, then it is a composite number.
The factors of 7700 are as follows:
1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700
Therefore, since 7700 is divisible by more than one and itself, the answer to the
question "Is 7700 prime or composite?" is highlighted in blue below.
composite
Is 7701 prime or composite?
OK. Now you know that 7700 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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