Composite Numbers

Because that's the definition of a composite number (or, at least, it's logically equivalent to the definition).

The numbers 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49 and 50 are composite (including the boundaries).

They are all composite.

You would write it like this 12,345,675,638,970,652,863 .

45786 is not prime. 45786 = 2 * 3 * 13 * 587

2060 is not a prime number because any number ending in zero can be divided by 10. So, it is a composite number.

MISTAKEN is the answer for this puzzle: * letters 1234 are MIST (climate condition)

* letters 678 are KEN (a name) * letters 478 are TEN (a number) * letters 1457 are MTAE (can be rearranged to spell MATE, a challenge in chess games.)

divisible by more than two numbers

2178309 is composite; it is divisible by 3.

Prime. Besides ' 1 ' and itself, it has no other factors.

731 is composite, 103 is prime.

51 is composite, 103 is prime.

19 is a prime number

composite

It is prime, because its only factors are 53 and 1.

17 is not a composite number because composite numbers have other factors aside from 1 and itself.

Factors of 17 are only 1 and 17, thus, 17 is a prime number.

612 is a composite number: its factors are 1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 153, 204, 306 and 612.

102 & 104

21 22 24 25 26 27 28 30 32 33 34 35 36 38 39 40

There must be more than 2 factors for a number to be composite.

31 and 37

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 5464282 is composite.

It is 37 because it has only 2 factors which are itself and one

Yes. It is even, so it is divisible by 2.

It is prime