To determine if 7220 is a prime number or a composite number, we simply look at the factors for 7220.
If the factors of 7220 are only 7220 and 1, then we know that 7220 is a prime number. Otherwise, 7220 is a composite number.
To explain better, if 7220 is only divisible by 1 and 7220, then it is a prime number, and if 7220 is divisible by more than 7220 and 1, then it is a composite number.
The factors of 7220 are as follows:
1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220
Therefore, since 7220 is divisible by more than one and itself, the answer to the
question "Is 7220 prime or composite?" is highlighted in blue below.
composite
Is 7221 prime or composite?
OK. Now you know that 7220 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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