Q: What are the prime factors of the number 422,655,144?

 A: 2, 3, 37, 103, 4621

Why are those the prime factors of the number 422,655,144?

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 422,655,144

422,655,144
Factor Arrows
2211,327,572
Factor Arrows
2105,663,786
Factor Arrows
252,831,893
Factor Arrows
317,610,631
Factor Arrows
37475,963
Factor Arrows
1034,621

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, 37, 103, 4621

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 37 x 103 x 4,621 = 422,655,144

This can also be written as 23 x 31 x 371 x 1031 x 4,6211 = 422,655,144

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


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