Q: What are the prime factors of the number 54,331,144?

 A: 2, 7, 79, 12281

Why are those the prime factors of the number 54,331,144?

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 54,331,144

54,331,144
Factor Arrows
227,165,572
Factor Arrows
213,582,786
Factor Arrows
26,791,393
Factor Arrows
7970,199
Factor Arrows
7912,281

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, 7, 79, 12281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 79 x 12,281 = 54,331,144

This can also be written as 23 x 71 x 791 x 12,2811 = 54,331,144

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


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