Q: What are the prime factors of the number 617,600?

 A: 2, 5, 193

Why are those the prime factors of the number 617,600?

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 617,600

617,600
Factor Arrows
2308,800
Factor Arrows
2154,400
Factor Arrows
277,200
Factor Arrows
238,600
Factor Arrows
219,300
Factor Arrows
29,650
Factor Arrows
24,825
Factor Arrows
5965
Factor Arrows
5193

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, 193

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 5 x 5 x 193 = 617,600

This can also be written as 27 x 52 x 1931 = 617,600

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


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