741
The 741 is the operational amplifier that made analogue design teachable.
- Odd
- Composite
Where 741 fits
Why 741 is special
Introduced in 1968, it was the first op-amp robust enough that a beginner could wire it wrongly and not destroy it. Almost every electronics course still starts with it, decades after better parts existed.
741 is part of
Factors & digit properties
- Divisors (8)
- 1, 3, 13, 19, 39, 57, 247, 741
- Prime factorisation
- 3 × 13 × 19
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 741
- Binary
- 1011100101
- Octal
- 1345
- Hexadecimal
- 2e5
- Roman numeral
- DCCXLI
- Scientific notation
- 7.410 × 10^2
Other mathematical patterns
- Triangular number
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
The 741 operational amplifier part number is used as a generic term for the part regardless of manufacturer.
The 741 op-amp and the 555 timer are the two chips almost every electronics course begins with, both introduced around 1970 and both still manufactured in volume.
View 555 →Technology & computing
The 741's internal protection made it survivable in the hands of students, which is why it became the teaching standard and stayed there long after superior op-amps arrived. Robustness beat performance.
DocumentedTechnology & computingPeriod: 1968
Common questions
Is 741 a prime number?
No, 741 is not prime.
What are the factors of 741?
The factors of 741 are 1, 3, 13, 19, 39, 57, 247, 741.
What is 741 in Roman numerals?
741 in Roman numerals is DCCXLI.
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