Q: What is the total or count of factors of the number 1,555,320?

 A: 64

How do I find the total factors of the number 1,555,320?

Step 1

Find the prime factorization of the number 1,555,320.

Use a factor tree to assist with solving. Take a look at our prime factorization page for additional help.

Factor Tree
1,555,320
Factor Arrows
2777,660
Factor Arrows
2388,830
Factor Arrows
2194,415
Factor Arrows
364,805
Factor Arrows
512,961
Factor Arrows
13997

The prime factorization in exponential form is: 23 x 31 x 51 x 131 x 9971

Step 2

Setup the equation for determining the number of factors or divisors. The equation is:

d(n) = (a + 1)(b + 1)(c + 1)(d + 1)(e + 1)

Where d(n) is equal to the number of divisors of the number and a, b, etc. are equal to the exponents of the prime factorization.

Now substitute the letters in the equation with the the exponents of your prime factorization and then solve to calculate the total number of divisors.

1,555,320 = 23 x 31 x 51 x 131 x 9971
Down Arrow
d(n) = (a + 1)(b + 1)(c + 1)(d + 1)(e + 1)
Down Arrow
d(1555320) = (3 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)
Down Arrow
d(1555320) = (4)(2)(2)(2)(2)
Down Arrow
d(1555320) = 64

More numbers for you to try

Take a look at the factors page to see the factors of 1,555,320 and how to find them.

Try the factor calculator.

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