Factors of 49
There are 3 factors of 49 — the full list is below, with factor pairs, prime factorization, and divisibility notes.
Factors of 49
1, 7, 49
Factor pairs of 49
- 1 × 49
- 7 × 7
Prime factorization of 49
49 = 7²
Number facts
- 49 is a composite number.
- 49 has 3 factors.
- 49 is a perfect square.
- The sum of all factors of 49 is 57.
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How the factors of 49 are calculated
To find the factors of 49, every whole number from 1 up to the square root of 49(about 7.00) is tested for even division. 49 is odd, and it divides evenly by 7. Written as a product of primes, 49 = 7². 49 is also a perfect square, which is why one of its factor pairs is a number multiplied by itself.
Frequently asked questions about 49
How many factors does 49 have?
49 has 3 factors: 1, 7, 49.
Is 49 a prime number?
No. 49 is composite because it has factors other than 1 and itself.
What are the factor pairs of 49?
The factor pairs of 49 are 1 × 49, 7 × 7.
What is the prime factorization of 49?
The prime factorization of 49 is 7².