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.
It has more than two factors.
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.
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.
The answer depends on the degree to which the number needs to be rounded.
It is 558.
It has more than two factors.
Because it has more than two factors.
As a product of its prime factors: 3*3*43 = 387
None. 337 is a prime number.
The factors of 387 are: 1 3 9 43 129 387 The prime factors are: 3 and 43
387 = 3 x 3 x 43
No, its factors are: 1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257.
break it into prime number multiples,10 = 2 * 5 (both prime numbers)example: factorize 387(387) = 9 * 43 (both primes , end of excercise)factorize 390:(390) = 2 * (195) = 3 * (65) = 5 * 13 (both primes , end of excercise)
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.
All composite.
No, it isn't.
It is: 9*43 = 387