Factors of 43
There are 2 factors of 43 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 43
1, 43
Factor pairs of 43
- 1 × 43
Prime factorization of 43
43 = 43
Number facts
- 43 is a prime number.
- 43 has 2 factors.
- 43 is not a perfect square.
- The sum of all factors of 43 is 44.
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How the factors of 43 are calculated
To find the factors of 43, every whole number from 1 up to the square root of 43(about 6.56) is tested for even division. 43 is odd, and it turns out to be prime — no whole number other than 1 and 43 itself divides it evenly. Written as a product of primes, 43 = 43.
Frequently asked questions about 43
How many factors does 43 have?
43 has 2 factors: 1, 43.
Is 43 a prime number?
Yes. 43 is prime because its only factors are 1 and 43 itself.
What are the factor pairs of 43?
The factor pairs of 43 are 1 × 43.
What is the prime factorization of 43?
The prime factorization of 43 is 43.