John David Brillhart was an American mathematician known for his work in algorithmic number theory. He studied at the University of California, Berkeley, earning a Ph.D. in 1967 under Derrick Henry Lehmer. Brillhart served as a professor at the University of Arizona until his retirement and contributed to factorization methods. Notably, he implemented the Continued Fraction Factorization (CFRAC) method in collaboration with Michael Morrison, factorizing the seventh Fermat number. He also participated in the Cunningham Project, which focused on factorizing numbers of the form b^n ± 1.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 324 days away.
Death Anniversary
Next death anniversary is 216 days away.
Death Date
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - John
God is gracious
Read Full John Name AnalysisNovember 13, 1930 Facts
Generation Group
John David Brillhart belongs to the Silent Generation group.
Place of Birth: Alameda County, California
Educated At: Berkeley High School | University of California, Berkeley
Occupation: university teacher | mathematician
Employers: University of Arizona
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.
Ephemeris for November 13, 1930
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on November 13, 2025 | Secondary Progressions for November 13, 2025 |
|---|---|---|---|
| Sun | 20 Scorpio 36 | 21 Scorpio 34 | 27 Aquarius 4 |
| Moon | 22 Leo 59 | 9 Virgo 1 | 17 Aquarius 48 |
| Mercury | 24 Scorpio 29 | 5 Sagittarius 38 | 7 Aquarius 31 |
| Venus | 4 Sagittarius 43 | 8 Scorpio 29 | 10 Capricorn 51 |
| Mars | 10 Leo 6 | 6 Sagittarius 37 | 29 Cancer 58 |
| Jupiter | 20 Cancer 17 | 25 Cancer 9 | 10 Cancer 49 |
| Saturn | 8 Capricorn 44 | 25 Pisces 14 | 19 Capricorn 14 |
| Uranus | 12 Aries 0 | 29 Taurus 47 | 12 Aries 46 |
| Neptune | 5 Virgo 37 | 29 Pisces 33 | 4 Virgo 37 |
| Pluto | 20 Cancer 47 | 1 Aquarius 35 | 19 Cancer 4 |
| Rahu | 22 Aries 10 | 14 Pisces 43 | 17 Aries 8 |
| Ketu | 22 Libra 10 | 14 Virgo 43 | 17 Libra 8 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
