Q: What are the prime factors of the number 53,761,320?

 A: 2, 3, 5, 5531

Why are those the prime factors of the number 53,761,320?

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 53,761,320

53,761,320
Factor Arrows
226,880,660
Factor Arrows
213,440,330
Factor Arrows
26,720,165
Factor Arrows
32,240,055
Factor Arrows
3746,685
Factor Arrows
3248,895
Factor Arrows
382,965
Factor Arrows
327,655
Factor Arrows
55,531

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, 5, 5531

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 5 x 5,531 = 53,761,320

This can also be written as 23 x 35 x 51 x 5,5311 = 53,761,320

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


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