87 is a composite number because it can be divided evenly by 3.
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The average of 79, 84, 82, and 87 is 83.
87 is composite.
No, the number 87 is composite.
61 + 73 + 71 + 80 + 87 + 90 + 90 + 90 + 87 + 83 + 73 + 63 = 948 / 12 = 79 The average of the numbers is therefore 79.
The factors of 87 are 1, 3, 29, and 87, so it is a composite number.