Q: What are the prime factors of the number 403,014,300?

 A: 2, 3, 5, 13, 7949

Why are those the prime factors of the number 403,014,300?

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 403,014,300

403,014,300
Factor Arrows
2201,507,150
Factor Arrows
2100,753,575
Factor Arrows
333,584,525
Factor Arrows
56,716,905
Factor Arrows
51,343,381
Factor Arrows
13103,337
Factor Arrows
137,949

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, 13, 7949

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 13 x 13 x 7,949 = 403,014,300

This can also be written as 22 x 31 x 52 x 132 x 7,9491 = 403,014,300

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


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