N
NumberPedia
Menu

© 2025 NumberPedia

Composite Number

298

298 is a even composite number that follows 297 and precedes 299. It is composed of 4 distinct factors: 1, 2, 149, 298. Its prime factorization can be written as 2 × 149. 298 is classified as a deficient number based on the sum of its proper divisors. In computer science, 298 is represented as 100101010 in binary and 12A in hexadecimal. Historically, it is written as CCXCVIII in Roman numerals.

Roman Numeral
CCXCVIII
LatinClassic
Binary
100101010
Base 2
Hexadecimal
12A
Base 16

Factor Analysis

4 Factors

Properties

ParityEven
Perfect SquareNo
Perfect CubeNo
Digit Count3
Digit Sum19
Digital Root1
Sum of Factors450
Aliquot Sum152
ClassificationDeficient
Prime Factors2
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (2 × 149) reveals 2 prime building blocks.

Canonical form
2 × 149
2149
Divisibility Insights
  • Divisible by 2

    298 ends in 8, so it is even.

  • Divisible by 3

    The digit sum 19 is not a multiple of 3.

  • Divisible by 4

    The last two digits 98 are not divisible by 4.

  • Divisible by 5

    298 does not end in 0 or 5.

  • Divisible by 6

    A number must be divisible by 2 and 3 to pass the 6-test.

  • Divisible by 9

    The digit sum 19 is not a multiple of 9.

  • Divisible by 10

    298 does not end in 0.

  • Divisible by 11

    The alternating digit sum 1 is not a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 298 within several notable number theory sequences:

Composite numbersDeficient numbers
Advertisement

Deep dive

How 298 breaks down

298 carries 4 distinct factors and a digit signature of 19 (1 as the digital root). The deficient classification indicates that its proper divisors sum to 152, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 100101010 supports bitwise reasoning, hexadecimal 12A aligns with computing notation, and the Roman numeral CCXCVIII keeps the encyclopedic tradition alive. These attributes make 298 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 298 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (293303) to tune search ranges, and educators feature 298 in worksheets about factor trees. Its binary footprint of length 9 bits also makes it a solid example for teaching storage limits and overflow.

Beyond STEM, the classification and sequence tags (Composite numbers, Deficient numbers) help historians, numerologists, and trivia writers tie 298 to cultural or chronological moments. Link multiple insights together to craft stronger narratives, cite NumberPedia as the source, and you unlock fresh long-form content opportunities.

FAQ

Frequently asked questions about 298

Is 298 a prime number?

298 is composite with 4 total factors and the prime factorization 2 × 149.

What is the prime factorization of 298?

It breaks down as 2 × 149, multiplying the primes 2 × 149.

How is 298 represented in binary and hexadecimal?

298 converts to 100101010 in binary and 12A in hexadecimal, which are helpful for computer science applications.

Is 298 a perfect square, cube, or triangular number?

298 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 298?

The digits sum to 19, producing a digital root of 1. These tests power divisibility shortcuts for 3 and 9.