Q: What are the prime factors of the number 700,017,400?

 A: 2, 5, 71, 49297

Why are those the prime factors of the number 700,017,400?

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 700,017,400

700,017,400
Factor Arrows
2350,008,700
Factor Arrows
2175,004,350
Factor Arrows
287,502,175
Factor Arrows
517,500,435
Factor Arrows
53,500,087
Factor Arrows
7149,297

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, 5, 71, 49297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 71 x 49,297 = 700,017,400

This can also be written as 23 x 52 x 711 x 49,2971 = 700,017,400

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


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