In a word, no. Caffeine is an integral part of the tea leave's chemistry. Due to matcha's powder form you cannot separate it as you would with regular tea leaves. Decaf green tea is achievable by either harsh chemical processes which are damaging to the teas quality.
A composite factor is a factor that is a composite number, asopposed to a prime factor which is a factor that is a prime number. A factor is a number or quantity that when multiplied with another produces a given number or expression.
difference of cube in factor form is: (a - b) (a^2 - ab + b^2) p^15 + 8q^12 is a sum of cubes. If you take cube root for p^15, it will give you P^5 and if you take cube root of 8q^12, it will give you 2q^4. This can be factored as (p^5 + 2q^4) (p^10 - 2p^5q^4 + 4q^8).