Q: What is the total or count of factors of the number 78,389,157?

 A: 32

How do I find the total factors of the number 78,389,157?

Step 1

Find the prime factorization of the number 78,389,157.

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

Factor Tree
78,389,157
Factor Arrows
326,129,719
Factor Arrows
73,732,817
Factor Arrows
11339,347
Factor Arrows
439773

The prime factorization in exponential form is: 31 x 71 x 111 x 4391 x 7731

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.

78,389,157 = 31 x 71 x 111 x 4391 x 7731
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d(n) = (a + 1)(b + 1)(c + 1)(d + 1)(e + 1)
Down Arrow
d(78389157) = (1 + 1)(1 + 1)(1 + 1)(1 + 1)(1 + 1)
Down Arrow
d(78389157) = (2)(2)(2)(2)(2)
Down Arrow
d(78389157) = 32

More numbers for you to try

Take a look at the factors page to see the factors of 78,389,157 and how to find them.

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