4921
This number is a composite.
4921 is the first of 6 consecutive 3-almost primes: 4921 =
7 * 19 * 37; 4922 = 2 * 23 * 107; 4923 = 3^2 * 547; 4924 =
2^2 * 1231; 4925 = 5^2 * 197; 4926 = 2 * 3 * 821. [Post]
(There is one curio for this number that has not yet been approved by an editor.)
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