Q: What is the total or count of factors of the number 291,165?

A: 32

How do I find the total factors of the number 291,165?

Step 1

Find the prime factorization of the number 291,165.

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

Factor Tree

	291,165

3		97,055

	5		19,411

		7		2,773

			47		59

The prime factorization in exponential form is: 3¹ x 5¹ x 7¹ x 47¹ x 59¹

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.

291,165 = 3¹ x 5¹ x 7¹ x 47¹ x 59¹

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

d(291165) = (1 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)

d(291165) = (2)(2)(2)(2)(2)

d(291165) = 32

More numbers for you to try

Take a look at the factors page to see the factors of 291,165 and how to find them.

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