Q: What are the prime factors of the number 87,432,224?

 A: 2, 11, 17, 19, 769

Why are those the prime factors of the number 87,432,224?

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 87,432,224

87,432,224
Factor Arrows
243,716,112
Factor Arrows
221,858,056
Factor Arrows
210,929,028
Factor Arrows
25,464,514
Factor Arrows
22,732,257
Factor Arrows
11248,387
Factor Arrows
1714,611
Factor Arrows
19769

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, 11, 17, 19, 769

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 17 x 19 x 769 = 87,432,224

This can also be written as 25 x 111 x 171 x 191 x 7691 = 87,432,224

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


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