Factors of 50
There are 6 factors of 50 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 50
1, 2, 5, 10, 25, 50
Factor pairs of 50
- 1 × 50
- 2 × 25
- 5 × 10
Prime factorization of 50
50 = 2 × 5²
Number facts
- 50 is a composite number.
- 50 has 6 factors.
- 50 is not a perfect square.
- The sum of all factors of 50 is 93.
Divisibility rules that apply to 50
- 50 is divisible by 2 because it ends in an even digit (0, 2, 4, 6, or 8).
- 50 is divisible by 5 because it ends in 0 or 5.
- 50 is divisible by 10 because it ends in 0.
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How the factors of 50 are calculated
To find the factors of 50, every whole number from 1 up to the square root of 50(about 7.07) is tested for even division. 50 is even, and it divides evenly by 2, 5, 10, 25. Written as a product of primes, 50 = 2 × 5², which confirms every factor above is a combination of those prime building blocks.
Frequently asked questions about 50
How many factors does 50 have?
50 has 6 factors: 1, 2, 5, 10, 25, 50.
Is 50 a prime number?
No. 50 is composite because it has factors other than 1 and itself.
What are the factor pairs of 50?
The factor pairs of 50 are 1 × 50, 2 × 25, 5 × 10.
What is the prime factorization of 50?
The prime factorization of 50 is 2 × 5².