Q: What is the total or count of factors of the number 221,861,312?

 A: 28

How do I find the total factors of the number 221,861,312?

Step 1

Find the prime factorization of the number 221,861,312.

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

Factor Tree
221,861,312
Factor Arrows
2110,930,656
Factor Arrows
255,465,328
Factor Arrows
227,732,664
Factor Arrows
213,866,332
Factor Arrows
26,933,166
Factor Arrows
23,466,583
Factor Arrows
23150,721

The prime factorization in exponential form is: 26 x 231 x 150,7211

Step 2

Setup the equation for determining the number of factors or divisors. The equation is:

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

221,861,312 = 26 x 231 x 150,7211
Down Arrow
d(n) = (a + 1)(b + 1)(c + 1)
Down Arrow
d(221861312) = (6 + 1)(1 + 1)(1 + 1)
Down Arrow
d(221861312) = (7)(2)(2)
Down Arrow
d(221861312) = 28

More numbers for you to try

Take a look at the factors page to see the factors of 221,861,312 and how to find them.

Try the factor calculator.

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