1401
The IBM 1401 was the computer that made business computing ordinary.
- Odd
- Composite
Where 1401 fits
Why 1401 is special
More than ten thousand were installed from 1959, at a time when the total world population of computers was in the hundreds. It ran payroll and accounting for medium-sized companies, and its success is a large part of why IBM dominated the industry for the following two decades.
Factors & digit properties
- Divisors (4)
- 1, 3, 467, 1401
- Prime factorisation
- 3 × 467
- Digit sum
- 6
- Digital root
- 6
Representations
- Decimal
- 1401
- Binary
- 10101111001
- Octal
- 2571
- Hexadecimal
- 579
- Roman numeral
- MCDI
- Scientific notation
- 1.401 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
Two steps in making computing ordinary — the 1401 put computers into medium-sized businesses in 1959, and the 4004 put a processor on a single chip in 1971.
View 4004 →Other connections
- developed from4004
why?
Strength 0.50, confidence "high".
Technology & computing
The IBM 1401, announced in 1959, was installed in over ten thousand sites and handled routine business accounting. It brought stored-program computing to organisations that had used punched card tabulators.
DocumentedTechnology & computingGeography: United StatesPeriod: 1959–1971More than ten thousand IBM 1401s were installed from 1959, when the world's total computer population was in the hundreds. It ran payroll and accounting for ordinary medium-sized firms, and that ordinariness is what established computing as a normal cost of doing business.
DocumentedTechnology & computingPeriod: 1959
Common questions
Is 1401 a prime number?
No, 1401 is not prime.
What are the factors of 1401?
The factors of 1401 are 1, 3, 467, 1401.
What is 1401 in Roman numerals?
1401 in Roman numerals is MCDI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 3 August 2026