Q: What are the prime factors of the number 35,077,120?

 A: 2, 5, 13, 17, 31

Why are those the prime factors of the number 35,077,120?

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 35,077,120

35,077,120
Factor Arrows
217,538,560
Factor Arrows
28,769,280
Factor Arrows
24,384,640
Factor Arrows
22,192,320
Factor Arrows
21,096,160
Factor Arrows
2548,080
Factor Arrows
2274,040
Factor Arrows
2137,020
Factor Arrows
268,510
Factor Arrows
234,255
Factor Arrows
56,851
Factor Arrows
13527
Factor Arrows
1731

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, 5, 13, 17, 31

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 2 x 2 x 5 x 13 x 17 x 31 = 35,077,120

This can also be written as 210 x 51 x 131 x 171 x 311 = 35,077,120

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


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