#PrimeNumbers in #AmazingColourPatterns

Single “LAST DIGIT Patterns”

These images illustrate the positions that Last Digits 1 3 7 9 assume in a Decimal Pyramid as ‘indicators’ of Prime Numbers. 5 is included due to its role in multiples of 10.

What the Pyramids do and don’t reveal…

NEXT: Composite “Last Digit Patterns”


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