Q: What is the total or count of factors of the number 345,305,125?

A: 32

How do I find the total factors of the number 345,305,125?

Step 1

Find the prime factorization of the number 345,305,125.

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

Factor Tree

	345,305,125

5		69,061,025

	5		13,812,205

		5		2,762,441

			11		251,131

				31		8,101

The prime factorization in exponential form is: 5³ x 11¹ x 31¹ x 8,101¹

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.

345,305,125 = 5³ x 11¹ x 31¹ x 8,101¹

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

d(345305125) = (3 + 1)(1 + 1)(1 + 1)(1 + 1)

d(345305125) = (4)(2)(2)(2)

d(345305125) = 32

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Take a look at the factors page to see the factors of 345,305,125 and how to find them.

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