378 in words
378
three hundred seventy-eight
378 is written three hundred seventy-eight.
Ways to write it
- As an ordinal
- three hundred seventy-eighth
- Roman numeral
- CCCLXXVIII
- Expanded form
- 300 + 70 + 8
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 3 | 300 |
| tens | 7 | 70 |
| ones | 8 | 8 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189 and 378 (16 factors)
- First 10 multiples
- 378, 756, 1,134, 1,512, 1,890, 2,268, 2,646, 3,024, 3,402, 3,780
- Square
- 378 × 378 = 142,884
- Square root
- ≈ 19.44
- Sum of the digits
- 3 + 7 + 8 = 18
- Rounded to the nearest 10
- 380
- Rounded to the nearest 100
- 400
- Number before
- 377
- Number after
- 379
- In binary
101111010
Quick check
What number comes just after 378?
Show the answer
379
Is 378 even or odd?
Show the answer
Even
What is 378 + 10?
Show the answer
388
Practice with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 378 in words?
378 is written "three hundred seventy-eight".
Is 378 a prime number?
No. 378 is a composite number, because it has more than two factors.
What are the factors of 378?
The factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189 and 378.
How do you write 378 in Roman numerals?
378 in Roman numerals is CCCLXXVIII.