Q: What are the prime factors of the number 271,531,008?

 A: 2, 3, 7, 23, 61

Why are those the prime factors of the number 271,531,008?

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 271,531,008

271,531,008
Factor Arrows
2135,765,504
Factor Arrows
267,882,752
Factor Arrows
233,941,376
Factor Arrows
216,970,688
Factor Arrows
28,485,344
Factor Arrows
24,242,672
Factor Arrows
22,121,336
Factor Arrows
21,060,668
Factor Arrows
2530,334
Factor Arrows
2265,167
Factor Arrows
388,389
Factor Arrows
329,463
Factor Arrows
39,821
Factor Arrows
71,403
Factor Arrows
2361

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, 7, 23, 61

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 2 x 2 x 2 x 3 x 3 x 3 x 7 x 23 x 61 = 271,531,008

This can also be written as 210 x 33 x 71 x 231 x 611 = 271,531,008

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


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