A factor rainbow, like factor trees, ladders and fireworks, is a way to notate the process of finding the prime factorization of a given number.
Example: 210
7,5,3,2
35,3,2
105,2
210
2 x 3 x 5 x 7 = 210
Chat with our AI personalities
the factor rainbow of 4 is 1,2,4
You do a factor rainbow to find a prime factorization. You compare prime factorizations to find a greatest common factor.
43 is a prime number and doesn't have a rainbow because it only has one prime factor: itself.
The factor rainbow of 75 is: 1 and 75 3 and 25 5 and 15 Therefore, the factor rainbow of 75 is (1, 75), (3, 25), (5, 15).
you do a factor rainbow.