2025
This number is a composite.
Just showing those entries submitted by 'de Ruiter': (Click here to show all)
2025 = (20+25)^2 = (1+2+3+4+5+6+7+8+9)^2 = 1^3+2^3+3^3+4^3+5^3+6^3+7^3+8^3+9^3 and any two consecutive digits of 2025 is prime. [de Ruiter]
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