Q: What are the prime factors of the number 621,256,600?

 A: 2, 5, 41, 239, 317

Why are those the prime factors of the number 621,256,600?

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 621,256,600

621,256,600
Factor Arrows
2310,628,300
Factor Arrows
2155,314,150
Factor Arrows
277,657,075
Factor Arrows
515,531,415
Factor Arrows
53,106,283
Factor Arrows
4175,763
Factor Arrows
239317

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, 41, 239, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 41 x 239 x 317 = 621,256,600

This can also be written as 23 x 52 x 411 x 2391 x 3171 = 621,256,600

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


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