Q: What are the prime factors of the number 51,454,464?

 A: 2, 3, 139, 241

Why are those the prime factors of the number 51,454,464?

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 51,454,464

51,454,464
Factor Arrows
225,727,232
Factor Arrows
212,863,616
Factor Arrows
26,431,808
Factor Arrows
23,215,904
Factor Arrows
21,607,952
Factor Arrows
2803,976
Factor Arrows
2401,988
Factor Arrows
2200,994
Factor Arrows
2100,497
Factor Arrows
333,499
Factor Arrows
139241

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, 139, 241

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 2 x 2 x 3 x 139 x 241 = 51,454,464

This can also be written as 29 x 31 x 1391 x 2411 = 51,454,464

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


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