Prime Curios!: 140

140
(another Prime Pages' Curiosity)

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The largest prime factor of 140 is 7. Note that 1² + 2² + 3² + 4² + 5² + 6² + 7² = 140. [Cramer]

The start of a record-breaking run of 7 consecutive integers (140-146) with an even number of prime factors. Note that 7 is the largest prime factor of 140. [Gupta]