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170 is the smallest number that can be written as the sum of the squares of 2 distinct primes, where each of these primes is the square of a prime added to another prime (170 = (2^{2} + 3)^{2} + (3^{2} + 2)^{2}). [Thoms]
The start of a recordbreaking run of consecutive integers (170176) with an odd number of prime factors. [Honaker]
(There is one curio for this number that has not yet been approved by an editor.)
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