1610
1610 is the year Galileo published his telescopic observations.
- Even
- Composite
Where 1610 fits
Why 1610 is special
Sidereus Nuncius reported mountains on the Moon, four moons orbiting Jupiter and countless unseen stars. Jupiter's moons mattered most: they were objects visibly orbiting something that was not the Earth.
Factors & digit properties
- Divisors (16)
- 1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610
- Prime factorisation
- 2 × 5 × 7 × 23
- Digit sum
- 8
- Digital root
- 8
Representations
- Decimal
- 1610
- Binary
- 11001001010
- Octal
- 3112
- Hexadecimal
- 64a
- Roman numeral
- MDCX
- Scientific notation
- 1.610 × 10^3
Other mathematical patterns
- Abundant number
Related numbers & connections
Kepler's supernova in 1604 and Galileo's telescope observations in 1610. Between them they removed the idea that the heavens were unchanging and that everything orbited the Earth.
View 1604 →Science
Galileo's four moons of Jupiter were the observation that did the damage in 1610. Whatever else was disputed, here were bodies plainly circling a centre that was not the Earth, which the prevailing cosmology had no room for.
DocumentedSciencePeriod: 1610
Common questions
Is 1610 a prime number?
No, 1610 is not prime.
What are the factors of 1610?
The factors of 1610 are 1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610.
What is 1610 in Roman numerals?
1610 in Roman numerals is MDCX.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026