Q: What is the total or count of factors of the number 785,915?

A: 16

How do I find the total factors of the number 785,915?

Step 1

Find the prime factorization of the number 785,915.

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

Factor Tree

	785,915

5		157,183

	13		12,091

		107		113

The prime factorization in exponential form is: 5¹ x 13¹ x 107¹ x 113¹

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)

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.

785,915 = 5¹ x 13¹ x 107¹ x 113¹

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

d(785915) = (1 + 1)(1 + 1)(1 + 1)(1 + 1)

d(785915) = (2)(2)(2)(2)

d(785915) = 16

More numbers for you to try

Take a look at the factors page to see the factors of 785,915 and how to find them.

Try the factor calculator.

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