Q: What are the prime factors of the number 270,742,290?

 A: 2, 3, 5, 7, 13, 99173

Why are those the prime factors of the number 270,742,290?

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 270,742,290

270,742,290
Factor Arrows
2135,371,145
Factor Arrows
345,123,715
Factor Arrows
59,024,743
Factor Arrows
71,289,249
Factor Arrows
1399,173

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, 5, 7, 13, 99173

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 13 x 99,173 = 270,742,290

This can also be written as 21 x 31 x 51 x 71 x 131 x 99,1731 = 270,742,290

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


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