Q: What is the total or count of factors of the number 220,221,210?

A: 192

How do I find the total factors of the number 220,221,210?

Step 1

Find the prime factorization of the number 220,221,210.

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

Factor Tree

	220,221,210

2		110,110,605

	3		36,703,535

		5		7,340,707

			11		667,337

				11		60,667

					19		3,193

						31		103

The prime factorization in exponential form is: 2¹ x 3¹ x 5¹ x 11² x 19¹ x 31¹ x 103¹

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)(g + 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.

220,221,210 = 2¹ x 3¹ x 5¹ x 11² x 19¹ x 31¹ x 103¹

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

d(220221210) = (1 + 1)(1 + 1)(1 + 1)(2 + 1)(1 + 1)(1 + 1)(1 + 1)

d(220221210) = (2)(2)(2)(3)(2)(2)(2)

d(220221210) = 192

More numbers for you to try

Take a look at the factors page to see the factors of 220,221,210 and how to find them.

Try the factor calculator.

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