Q: What are the prime factors of the number 8,742,552?

 A: 2, 3, 7, 13, 4003

Why are those the prime factors of the number 8,742,552?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 8,742,552

8,742,552
Factor Arrows
24,371,276
Factor Arrows
22,185,638
Factor Arrows
21,092,819
Factor Arrows
3364,273
Factor Arrows
752,039
Factor Arrows
134,003

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 13, 4003

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 13 x 4,003 = 8,742,552

This can also be written as 23 x 31 x 71 x 131 x 4,0031 = 8,742,552

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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