2: 2
3: 3
4: 2
5: 5
6: 2, 3
7: 7
8: 2
9: 3
10: 2, 5
11: 11
12: 2, 3
13: 13
14: 2, 7
15: 3, 5
16: 2
17: 17
18: 2, 3
19: 19
20: 2, 5
Wiki User
∙ 8y agoWiki User
∙ 13y agoPrime factors are for a specific number. The prime factors of 20 are 2, 2, and 5. The prime factor of 19 is 19. The prime factors of 18 are 2, 3, and 3.
Wiki User
∙ 10y agoThe prime factors of 10 and 20 are 2 and 5.
The prime numbers between 10 and 20 are 11, 13, 17 and 19.
Wiki User
∙ 9y agoJust use the definition of "mean". That is:
a) Add them all up
b) Count how many there are
c) Divide the answer of part (a) by the answer of part (b).
60 ÷ 4 = 15
Wiki User
∙ 13y ago20=2x2x5
Wiki User
∙ 11y ago2 x 5 = 10
The prime factors are: 2 x 2 x 5
It's not, because all the factors of 20 aren't prime.
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 20 are: 1, 2, 4, 5, 10, and 20.The prime factors of 20 are: 2 and 5.
The factors of 4 are 1, 2, and 4. The only prime factor of 4 is 2. The factors of 20 are 1, 2, 4, 5, 10, and 20. The prime factors of 20 are 2x2x5.
There are no common factors between these values since 11 is prime and 20 is composite. Then, there are no common prime factors between these values.
The prime factors of 20 are: 2 and 5.
For a number to have [only] 2 factors, it must be a prime number; the prime numbers between 0 and 20 are; 2, 3, 5, 7, 11, 13, 17, 19
Any multiple of 20 includes the prime factors of 20.
The prime factors of 20 are 2, 2, and 5.
The prime factors of 100 are 2, and 5. The composite factors are 100, 50, 25, 20, 10, and 4. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 have a different name.
The prime factors of 20 are 2 and 5. The prime factors of 30 are 2, 3 and 5.
Factors for 20 are: 1, 2, 4, 5, 10, 20 Prime Factors: 2, 5 sum of prime factors = 2 + 5 = 7
no, 20 is even; therefore it is a multiple of 2.
5 is a prime number. It is only evenly divisible by itself and one. The factors of 20 are: 1, 2, 4, 5, 10, and 20. The prime factors of 20 are: 2 and 5.
The prime factors are: 2 x 2 x 5
The factors of 20 are: 1, 2, 4, 5, 10, and 20.The prime factors of 20 are: 2 and 5.The factors of 50 are: 1, 2, 5, 10, 25, and 50.The prime factors of 50 are: 2 and 5.
The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 20 are: 1, 2, 4, 5, 10, and 20.The prime factors of 20 are: 2 and 5.