Q: What are the prime factors of the number 242,205,140?

 A: 2, 5, 71, 281, 607

Why are those the prime factors of the number 242,205,140?

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 242,205,140

242,205,140
Factor Arrows
2121,102,570
Factor Arrows
260,551,285
Factor Arrows
512,110,257
Factor Arrows
71170,567
Factor Arrows
281607

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, 71, 281, 607

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 71 x 281 x 607 = 242,205,140

This can also be written as 22 x 51 x 711 x 2811 x 6071 = 242,205,140

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


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