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1275 (another Prime Pages' Curiosity) |
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The smallest integer n such that n-1, n, and n+1 are products of the form p * q * r^2 for p, q, r prime: 1274 = 2 * 7^2 * 13; 1275 = 3 * 5^2 * 17; 1276 = 2^2 * 11 * 29. [Post]
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