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A prime whose cube can be expressed as the sum of three prime squares in two different ways, i.e., 1619^{3} is 3^{2} + 24967^{2} + 60169^{2} and 3^{2} + 28163^{2} + 58741^{2}. [Rivera] 1619 is the 256th prime. If you square the number formed from the first two digits in ascending order, namely 16, you get 256. [Missailidis]
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