Q: What are the prime factors of the number 634,260,400?

 A: 2, 5, 151, 10501

Why are those the prime factors of the number 634,260,400?

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 634,260,400

634,260,400
Factor Arrows
2317,130,200
Factor Arrows
2158,565,100
Factor Arrows
279,282,550
Factor Arrows
239,641,275
Factor Arrows
57,928,255
Factor Arrows
51,585,651
Factor Arrows
15110,501

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, 151, 10501

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 151 x 10,501 = 634,260,400

This can also be written as 24 x 52 x 1511 x 10,5011 = 634,260,400

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


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