Q: What are the prime factors of the number 53,251,056?

 A: 2, 3, 31, 79, 151

Why are those the prime factors of the number 53,251,056?

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 53,251,056

53,251,056
Factor Arrows
226,625,528
Factor Arrows
213,312,764
Factor Arrows
26,656,382
Factor Arrows
23,328,191
Factor Arrows
31,109,397
Factor Arrows
3369,799
Factor Arrows
3111,929
Factor Arrows
79151

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, 79, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 31 x 79 x 151 = 53,251,056

This can also be written as 24 x 32 x 311 x 791 x 1511 = 53,251,056

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


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