Q: What are the prime factors of the number 4,037,688?

 A: 2, 3, 31, 67

Why are those the prime factors of the number 4,037,688?

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 4,037,688

4,037,688
Factor Arrows
22,018,844
Factor Arrows
21,009,422
Factor Arrows
2504,711
Factor Arrows
3168,237
Factor Arrows
356,079
Factor Arrows
318,693
Factor Arrows
36,231
Factor Arrows
32,077
Factor Arrows
3167

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, 31, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 31 x 67 = 4,037,688

This can also be written as 23 x 35 x 311 x 671 = 4,037,688

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


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