Q: What are the prime factors of the number 224,120,142?

 A: 2, 3, 23, 31, 5821

Why are those the prime factors of the number 224,120,142?

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 224,120,142

224,120,142
Factor Arrows
2112,060,071
Factor Arrows
337,353,357
Factor Arrows
312,451,119
Factor Arrows
34,150,373
Factor Arrows
23180,451
Factor Arrows
315,821

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, 23, 31, 5821

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 23 x 31 x 5,821 = 224,120,142

This can also be written as 21 x 33 x 231 x 311 x 5,8211 = 224,120,142

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


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