Q: What are the prime factors of the number 70,508,280?

 A: 2, 3, 5, 29, 20261

Why are those the prime factors of the number 70,508,280?

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 70,508,280

70,508,280
Factor Arrows
235,254,140
Factor Arrows
217,627,070
Factor Arrows
28,813,535
Factor Arrows
32,937,845
Factor Arrows
5587,569
Factor Arrows
2920,261

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, 29, 20261

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 29 x 20,261 = 70,508,280

This can also be written as 23 x 31 x 51 x 291 x 20,2611 = 70,508,280

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


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