Q: What is the total or count of factors of the number 126,605,205?

A: 48

How do I find the total factors of the number 126,605,205?

Step 1

Find the prime factorization of the number 126,605,205.

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

Factor Tree

	126,605,205

3		42,201,735

	3		14,067,245

		5		2,813,449

			17		165,497

				167		991

The prime factorization in exponential form is: 3² x 5¹ x 17¹ x 167¹ x 991¹

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.

126,605,205 = 3² x 5¹ x 17¹ x 167¹ x 991¹

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

d(126605205) = (2 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)

d(126605205) = (3)(2)(2)(2)(2)

d(126605205) = 48

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Take a look at the factors page to see the factors of 126,605,205 and how to find them.

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