Is 48 a prime number?
No, 48 is not a prime number. It is divisible by 2: 48 = 2 × 24.
Is 48 prime?
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A prime number has exactly two factors: 1 and itself.
- 2
It is enough to test the primes up to √48 ≈ 6.93. If none of them divides 48, it is prime.
- 3
2 divides 48 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 48 = 2^{4} \times 3 \]Testing 48 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 48 ÷ 2 | divides exactly (24) |
| 3 | 48 ÷ 3 | divides exactly (16) |
| 5 | 48 ÷ 5 | leaves 3 |
Questions
Is 48 a prime number?
No, 48 is not a prime number. It is divisible by 2: 48 = 2 × 24.
What is the next prime after 48?
53.
What is the prime number before 48?
47.
What are the factors of 48?
1, 2, 3, 4, 6, 8, 12, 16, 24, 48.