Number dictionary · Exact arithmetic
984: factors and number facts
nine hundred eighty-four is an even number and is composite. Its 16 positive divisors form 8 factor pairs.
Number JD Editorial Team · Updated 2026-10-08
- In words
- nine hundred eighty-four
- Roman numeral
- CMLXXXIV
- Prime factorization
- 2^3 × 3 × 41
- Digital root
- 3
All factors of 984
A positive factor divides 984 with no remainder. In ascending order, the complete list is:
1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984
Factor pairs
- 1 × 984 = 984
- 2 × 492 = 984
- 3 × 328 = 984
- 4 × 246 = 984
- 6 × 164 = 984
- 8 × 123 = 984
- 12 × 82 = 984
- 24 × 41 = 984
Each pair describes an arrangement of 984 items into equal rows. The pairs have different row and column counts; 984 cannot make a square array of whole items.
Divisor totals
- Positive divisors
- 16
- Sum of all divisors
- 2520
- Sum excluding 984
- 1536
- Classification
- abundant
984 is abundant because its proper divisors add to 1536, which is greater than 984.
Prime factorization of 984
984 = 2^3 × 3 × 41
Repeated division, step by step
- 984 ÷ 2 = 492
- 492 ÷ 2 = 246
- 246 ÷ 2 = 123
- 123 ÷ 3 = 41
- 41 ÷ 41 = 1
Multiply the prime divisors in these steps to reconstruct 984. An exponent records how many times the same prime occurs. The divisor-count calculation is (3 + 1) × (1 + 1) × (1 + 1) = 16.
The preceding prime is 983. The next larger prime is 991. The factor list above explains why 984 is composite.
Learn the factorization method984 in words, Roman numerals and other bases
| Representation | Value |
|---|---|
| English (US style) | nine hundred eighty-four |
| Roman numeral | CMLXXXIV |
| Binary (base 2) | 1111011000 |
| Octal (base 8) | 1730 |
| Decimal (base 10) | 984 |
| Hexadecimal (base 16) | 3D8 |
Check the binary conversion
Read 1111011000 from right to left using place values 1, 2, 4, 8 and successive powers of two. Keep the values whose bit is 1:
512 + 256 + 128 + 64 + 16 + 8 = 984
Check the hexadecimal conversion
3 × 16^2 + 13 × 16^1 + 8 × 16^0 = 984
Hexadecimal uses A through F for digit values 10 through 15. These notations represent the same quantity; changing the base does not change the integer.
Square, cube and square root of 984
- 984 squared
- 984 × 984 = 968,256
- 984 cubed
- 984 × 984 × 984 = 952,763,904
- Square root
- ≈ 31.368774
- Simplified radical
- 2√246
984 lies between 961 (31²) and 1024 (32²), so it is not a perfect square. It is not a perfect cube.
984 is not triangular: no positive whole-number k satisfies k(k + 1) / 2 = 984.
Distinguish a square from a square rootMultiplication table for 984
These are the first twelve positive multiples. Unlike the finite factor list, the sequence of multiples continues without an upper limit.
Divisibility checks
| Divide by | Whole quotient | Remainder | Divides exactly? |
|---|---|---|---|
| 2 | 492 | 0 | Yes |
| 3 | 328 | 0 | Yes |
| 4 | 246 | 0 | Yes |
| 5 | 196 | 4 | No |
| 6 | 164 | 0 | Yes |
| 7 | 140 | 4 | No |
| 8 | 123 | 0 | Yes |
| 9 | 109 | 3 | No |
| 10 | 98 | 4 | No |
| 11 | 89 | 5 | No |
| 12 | 82 | 0 | Yes |
For example, 984 = 7 × 140 + 4. A remainder of zero is what makes a divisor a factor.
Digit sum and digital root of 984
984 contains 3 decimal digits. Its digit sum is 9 + 8 + 4 = 21.
- 984: 9 + 8 + 4 = 21
- 21: 2 + 1 = 3
The digital root is 3. Reversing its digits gives 489; it is not a decimal palindrome. Digit patterns depend on the notation being used.
Digital-root arithmetic always finishes at a single digit for a positive integer. Some numerology methods stop at 11, 22 or 33 instead; that is a separate interpretive convention.
Fractions and a worked comparison
As a fraction of 100, 984/100 simplifies to 246/25 by dividing both terms by their greatest common divisor, 4. Its decimal value is 9.84. Because the numerator exceeds the denominator, this value is greater than one.
The greatest common divisor of 984 and 12 is 12. Their least common multiple is 984. The identity GCD × LCM = 984 × 12 = 11808 checks both results.
Work through GCF and LCMQuestions about 984
What are the factors of 984?
The positive factors are 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984. There are 16 factors, including 1 and 984.
Is 984 a prime number?
No. 984 is composite: 2^3 × 3 × 41 = 984.
How do you write 984 in Roman numerals?
984 is CMLXXXIV in standard subtractive Roman numeral notation.
What is the binary representation of 984?
984 in decimal is 1111011000 in base 2. Adding its active place values gives 512 + 256 + 128 + 64 + 16 + 8 = 984.
Methods and reference definitions
Number JD calculates each result from the integer on this page. Positive factors are enumerated in pairs; repeated division gives the prime factorization; place values verify base conversions. Decimal square roots are rounded to six places when irrational.
NUMBER JOURNAL / JD
A reflective note on 984
Meaning varies by tradition and personal experience. One sighting is not evidence of what will happen next.
The digits of 984 add to 21. That arithmetic result is separate from the cultural symbolism of the pattern. If this number matters to you, write down what you noticed and choose one grounded action rather than treating the sighting as a prediction.