Q: What are the prime factors of the number 4,621,536?

 A: 2, 3, 1783

Why are those the prime factors of the number 4,621,536?

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 4,621,536

4,621,536
Factor Arrows
22,310,768
Factor Arrows
21,155,384
Factor Arrows
2577,692
Factor Arrows
2288,846
Factor Arrows
2144,423
Factor Arrows
348,141
Factor Arrows
316,047
Factor Arrows
35,349
Factor Arrows
31,783

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, 1783

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 1,783 = 4,621,536

This can also be written as 25 x 34 x 1,7831 = 4,621,536

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


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