Q: What is the total or count of factors of the number 485,005,664?

A: 144

How do I find the total factors of the number 485,005,664?

Step 1

Find the prime factorization of the number 485,005,664.

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

Factor Tree

	485,005,664

2		242,502,832

	2		121,251,416

		2		60,625,708

			2		30,312,854

				2		15,156,427

					11		1,377,857

						13		105,989

							13		8,153

								31		263

The prime factorization in exponential form is: 2⁵ x 11¹ x 13² x 31¹ x 263¹

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.

485,005,664 = 2⁵ x 11¹ x 13² x 31¹ x 263¹

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

d(485005664) = (5 + 1)(1 + 1)(2 + 1)(1 + 1)(1 + 1)

d(485005664) = (6)(2)(3)(2)(2)

d(485005664) = 144

More numbers for you to try

Take a look at the factors page to see the factors of 485,005,664 and how to find them.

Try the factor calculator.

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