Q: What is the total or count of factors of the number 18,525,915?

A: 40

How do I find the total factors of the number 18,525,915?

Step 1

Find the prime factorization of the number 18,525,915.

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

Factor Tree

	18,525,915

3		6,175,305

	3		2,058,435

		3		686,145

			3		228,715

				5		45,743

					149		307

The prime factorization in exponential form is: 3⁴ x 5¹ x 149¹ x 307¹

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.

18,525,915 = 3⁴ x 5¹ x 149¹ x 307¹

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

d(18525915) = (4 + 1)(1 + 1)(1 + 1)(1 + 1)

d(18525915) = (5)(2)(2)(2)

d(18525915) = 40

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Take a look at the factors page to see the factors of 18,525,915 and how to find them.

Try the factor calculator.

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