Q: What is the total or count of factors of the number 213,121,404?

A: 162

How do I find the total factors of the number 213,121,404?

Step 1

Find the prime factorization of the number 213,121,404.

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

Factor Tree

	213,121,404

2		106,560,702

	2		53,280,351

		3		17,760,117

			3		5,920,039

				19		311,581

					19		16,399

						23		713

							23		31

The prime factorization in exponential form is: 2² x 3² x 19² x 23² x 31¹

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.

213,121,404 = 2² x 3² x 19² x 23² x 31¹

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

d(213121404) = (2 + 1)(2 + 1)(2 + 1)(2 + 1)(1 + 1)

d(213121404) = (3)(3)(3)(3)(2)

d(213121404) = 162

More numbers for you to try

Take a look at the factors page to see the factors of 213,121,404 and how to find them.

Try the factor calculator.

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