1, 2, 5, 10, 11,22, 55, 110
5,5,2 25,2 50
what does the number 500 million look like
I'm assuming you're wondering if a number is a perfect square? Well, memorization will help as will guess and check. However, if you feel like doing it all by hand, simplifying the square will help you determine if it is a perfect square. Example: let's figure out if the number 225 is a perfect square. Let's take 225 and factor it. When you factor this number, you want to look at factoring numbers which are a perfect square in and of themselves. So 22 is 4, but that doesn't factor, how about 52 ? 25 will indeed factor, so we have 25*9 (look at that, 9 is also a factor). If we split it up like this, we have sqrt(25*9). We can take the square root of these individually and multiply them together. sqrt(25)*sqrt(9) = 5*3 = 15. Therefore 225 is a perfect square of 15.
A chart like that would look pretty empty, sincethere's no such thing as a "biggest number".
2,19 38
5,5 25
7,3,3 21,3 63
5,5,2,2 25,2,2 50,2 100
41 is prime. No rainbow. Sorry.
13 is already prime. It doesn't need a rainbow.
1, 2, 5, 10, 11,22, 55, 110
97,3,2,2,2,2,2 291,2,2,2,2,2 582,2,2,2,2 1164,2,2,2 2328,2,2 4656,2 9312
Transparent. 11 is a prime number. No rainbow. Sorry.
247 13,19
5,11 55
13 is already prime. It doesn't need a rainbow.