Q: What is the total or count of factors of the number 720,534,620?

A: 96

How do I find the total factors of the number 720,534,620?

Step 1

Find the prime factorization of the number 720,534,620.

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

Factor Tree

	720,534,620

2		360,267,310

	2		180,133,655

		5		36,026,731

			13		2,771,287

				83		33,389

					173		193

The prime factorization in exponential form is: 2² x 5¹ x 13¹ x 83¹ x 173¹ x 193¹

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)(f + 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.

720,534,620 = 2² x 5¹ x 13¹ x 83¹ x 173¹ x 193¹

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

d(720534620) = (2 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)

d(720534620) = (3)(2)(2)(2)(2)(2)

d(720534620) = 96

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Take a look at the factors page to see the factors of 720,534,620 and how to find them.

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