First we create SemiPrimes as Products of Primes.
Then we wonder: how do we find the “Prime Factors” that made up the SemiPrime? That’s what “factorisation” means.
Here are the steps I took:
2 and 3. “Tightening up” by removing empty lines
4. form ‘triple columns’: the SemiPrime and its constituent Factors
5. Colour Factor 2 for visual effect
6. Create one long series and sort by SemiPrime and Factor 1
7. Add Last Digit Colouring
#PrimeNumbers in #AmazingColourPatterns 
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