Q: What are the prime factors of the number 70,081,443?

 A: 3, 19, 43, 353

Why are those the prime factors of the number 70,081,443?

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 70,081,443

70,081,443
Factor Arrows
323,360,481
Factor Arrows
37,786,827
Factor Arrows
32,595,609
Factor Arrows
3865,203
Factor Arrows
3288,401
Factor Arrows
1915,179
Factor Arrows
43353

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:

3, 19, 43, 353

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 19 x 43 x 353 = 70,081,443

This can also be written as 35 x 191 x 431 x 3531 = 70,081,443

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


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