3553

This number is a composite.

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The smaller of only two prime-digit 2-sphenic numbers of form abba, i.e., 3553 = 11 x 17 x 19. The other is 7337 = 11 × 23 × 29. [Loungrides]

Submitted: 2019-06-22 19:07:03; Last Modified: 2020-05-08 12:45:57.