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The doubles of all numbers up to 20 are as follows: 1 x 2 = 2, 2 x 2 = 4, 3 x 2 = 6, 4 x 2 = 8, 5 x 2 = 10, 6 x 2 = 12, 7 x 2 = 14, 8 x 2 = 16, 9 x 2 = 18, 10 x 2 = 20, 11 x 2 = 22, 12 x 2 = 24, 13 x 2 = 26, 14 x 2 = 28, 15 x 2 = 30, 16 x 2 = 32, 17 x 2 = 34, 18 x 2 = 36, 19 x 2 = 38, and 20 x 2 = 40. These are the respective doubles of the numbers from 1 to 20.
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TaigaA number when doubled means it has been multiplied by 2.
0 x 2 = 0 : 1 x 2 = 2 : 2 x 2 = 4 : 3 x 2 + 6 : 4 x 2 + 8 : 5 x 2 + 10
6 x 2 = 12 : 7 x 2 = 14 : 8 x 2 = 16 : 9 x 2 = 18 : 10 x 2 = 20
11 x 2 = 22 : 12 x 2 = 24 : 13 x 2 + 26 : 14 x 2 = 28 : 15 x 2 = 30
16 x 2 = 32 : 17 x 2 = 34 : 18 x 2 = 36 : 19 x 2 = 38 : 20 x 2 = 40
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Are 20-28 composite numbers?
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
What are all the prime numbers of 20?
The prime factors of 20 are 2x2x5.
What are all the numbers divisible by 20?
There is an infinite amount of numbers divisible by 20, however it starts off as 20,40,60,80,100,120,140,160,180,200...
Which whole numbers have square roots between 1 and 20?
All whole numbers between 1 and 400 (=20 square).
List all the prime numbers less than 20?
All the prime numbers less than 20 are 2,3,5,7,11,13,17,19
