18.
The first ten composite numbers are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
19 is the tenth odd number, And is not a composite number or even number.
ok so this is a little hard umm... the 10th prime number is let's see: 1,2,3,5,7,11,13,17,19,23 <------ 23 And the 10th composite number is: 4,6,8,9,10,12,14,15,16,18<------- 18 SO 23 plus 18 ISSSSSS........... 41 So the sum of the 10th prime number and the 10th composite number is 41!!! * * * * * 1 is neither prime nor composite. So the tenth prime is actually 29 and the sum is 47.
It is a composite number.284 is a composite number
94 is a composite number
515 is a composite number. NB Remember #1 ; Any number ending in an even number ( 0,2,4,6,8) is composite. #2 ; Any number ending in '0' or '5' is composite. #3 ; Any number whose digits sum to '9' is composite. e.g. 135 = 1 + 3 + 5 = 9 is a multiple of '9'. #4 ; You only need to divide by '3' or '7' to test for prime number. It the result is a whole number then it is NOT a prime. NNB Since the above number , 515, ands in ;5; then it is composite.
It is a composite number.
Both. It is a number and it is composite.
Composite number
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.