To determine if 4920 is a prime number or a composite number, we simply look at the factors for 4920.
If the factors of 4920 are only 4920 and 1, then we know that 4920 is a prime number. Otherwise, 4920 is a composite number.
To explain better, if 4920 is only divisible by 1 and 4920, then it is a prime number, and if 4920 is divisible by more than 4920 and 1, then it is a composite number.
The factors of 4920 are as follows:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4920
Therefore, since 4920 is divisible by more than one and itself, the answer to the
question "Is 4920 prime or composite?" is highlighted in blue below.
composite
Is 4921 prime or composite?
OK. Now you know that 4920 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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