This factorization is unique, known as primedecomposition (prime factorization).
这个因数分解是唯一的，被称为素数分解(prime factorization)。
2
Primedecomposition: in many cases, know that a number is prime is not enough, it also needs to know about the number.
说明：素数分解：、在许多情况下，知道一个数是素数还不够，还需要知道它的约数。
3
By using the energy distribution of the wavelet decomposition, image hiding algorithm based on wavelet transformation is presented, and then improved with prime number scrambling algorithm.