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This table gives the values of the "first factor" h*(p) and their factorizations for all primes p, 200 < p < 521. This extends similar data by M. Newman [Math. Comp., v. 24, 1970, pp. 215-219], and Schrutka [Berlin Akad. Abn., 1964]. The two methods used to compute these data are described.

Table of the cyclotomic class numbers ℎ*(𝑝) and their factors for 200<𝑝<521