To determine if 4200 is a prime number or a composite number, we simply look at the factors for 4200.
If the factors of 4200 are only 4200 and 1, then we know that 4200 is a prime number. Otherwise, 4200 is a composite number.
To explain better, if 4200 is only divisible by 1 and 4200, then it is a prime number, and if 4200 is divisible by more than 4200 and 1, then it is a composite number.
The factors of 4200 are as follows:
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200
Therefore, since 4200 is divisible by more than one and itself, the answer to the
question "Is 4200 prime or composite?" is highlighted in blue below.
composite
Is 4201 prime or composite?
OK. Now you know that 4200 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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