Factors of 1445

5, 17. As a product: 5 × 17^2.

The factors of 1445 are 1, 5, 17, 85, 289, 1445. It has 6 factors.

Factors of 1445

Pick any whole number from 1 to 10,000.

1445 = 5 \times 17^{2}

How to work it out

1
A factor of 1445 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1445 ≈ 38.01; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 6 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$1445 = 5 \times 17^{2}$
4
Add all the factors: 1 + 5 + 17 + 85 + 289 + 1445 = 1842. Without 1445 itself that is 397, so 1445 is a deficient number.

LaTeX source of the formulas on this page

\[ 1445 = 5 \times 17^{2} \]

What are the factors of 1445?

The factors of 1445 are 1, 5, 17, 85, 289, 1445. It has 6 factors.

What are the prime factors of 1445?

5, 17. As a product: 5 × $17^{2}$ .

How many factors does 1445 have?

1445 has 6 factors (3 factor pairs).

What is the sum of the factors of 1445?

1842.

Is 1445 a prime number?

No. It is divisible by 5, so 1445 = 5 × 289.