Q: What are the prime factors of the number 31,053,056?

 A: 2, 101, 1201

Why are those the prime factors of the number 31,053,056?

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 31,053,056

31,053,056
Factor Arrows
215,526,528
Factor Arrows
27,763,264
Factor Arrows
23,881,632
Factor Arrows
21,940,816
Factor Arrows
2970,408
Factor Arrows
2485,204
Factor Arrows
2242,602
Factor Arrows
2121,301
Factor Arrows
1011,201

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, 101, 1201

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 101 x 1,201 = 31,053,056

This can also be written as 28 x 1011 x 1,2011 = 31,053,056

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


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