It has more than two factors.
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387 cannot be prime as it divides by 3. A prime number has only 2 factors which are 1 and itself. Composite numbers are every other positive integer except 1 and 0. 1 and 0 are neither prime, nor composite.
To find 23 percent of a number, multiply the number by 0.23. In this instance, 0.23 x 387 = 89.01. Therefore, 23 percent of 387 is equal to 89.01.
The answer depends on the degree to which the number needs to be rounded.
It is 558.
To find 30 percent of a number, multiply the number by 0.3. In this instance, 0.3 x 1290 = 387. Therefore, 30 percent of 1290 is equal to 387.