Prime Numbers

No.

49 is divisible by 7, so the gcf (or gcd) is 7.

None. 37 is a prime number.

All composite numbers can be expressed as unique products of prime numbers. This is accomplished by dividing the original number and its factors by prime numbers until all the factors are prime. A factor tree can help you visualize this.

Example: 210

210 Divide by two.

105,2 Divide by three.

35,3,2 Divide by five.

7,5,3,2 Stop. All the factors are prime.

2 x 3 x 5 x 7 = 210

That's the prime factorization of 210.

As an even number greater than 2, 992 is divisible by 2 and therefore composite. The positive integer factors of 992 are:

1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992

No, it is even. The only even prime is 2.

260

130,2

65,2,2

13,5,2,2

2 x 2 x 5 x 13 = 260

3

Thirty nine is not a prime number because it has more than two factors one and itself and three. To be a prime number it must only have one and itself...

2 and 3

no

The prime factors are: 2, 7 and 11.

The smallest prime factor of 363 is: 3

Prime factors are 2, 2, 3, 5

Others are combinations of the primes, i.e.

2 x 2 = 4

2 x 3 = 6

2 x 5 = 10

2 x 2 x 3 = 12

3 x 5 = 15

2 x 2 x 5 = 20

2 x 3 x 5 = 30

How about: 2 4 8 16 32 64 128 256 ... etc

Composite. All positive, whole numbers greater than five and ending in 0, 2, 4, 5, 6 or 8 are composite.

As a product of its prime factors: 2*7*7*13 = 1274

1 x 169, 13 x 13, 169 x 1

27 BUT, as far as I can tell, it does not complete the sequence which can continue further.

No because 40 is a composite number with more than two factors.

Distinct in this case just means different. The prime factorization of 72 is 2 x 2 x 2 x 3 x 3. The distinct prime factors of 72 are 2 and 3.

1 + 1999 = 2,000

Yes.

It is: (-3x-4)(x+2) when factored