Q: What are the prime factors of the number 705,235,488?

 A: 2, 3, 307, 23929

Why are those the prime factors of the number 705,235,488?

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 705,235,488

705,235,488
Factor Arrows
2352,617,744
Factor Arrows
2176,308,872
Factor Arrows
288,154,436
Factor Arrows
244,077,218
Factor Arrows
222,038,609
Factor Arrows
37,346,203
Factor Arrows
30723,929

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, 307, 23929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 307 x 23,929 = 705,235,488

This can also be written as 25 x 31 x 3071 x 23,9291 = 705,235,488

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


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