Q: What are the prime factors of the number 143,050,368?

 A: 2, 3, 31, 61, 197

Why are those the prime factors of the number 143,050,368?

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 143,050,368

143,050,368
Factor Arrows
271,525,184
Factor Arrows
235,762,592
Factor Arrows
217,881,296
Factor Arrows
28,940,648
Factor Arrows
24,470,324
Factor Arrows
22,235,162
Factor Arrows
21,117,581
Factor Arrows
3372,527
Factor Arrows
3112,017
Factor Arrows
61197

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, 31, 61, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 31 x 61 x 197 = 143,050,368

This can also be written as 27 x 31 x 311 x 611 x 1971 = 143,050,368

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


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