Q: What are the prime factors of the number 140,205,056?

 A: 2, 23, 5953

Why are those the prime factors of the number 140,205,056?

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 140,205,056

140,205,056
Factor Arrows
270,102,528
Factor Arrows
235,051,264
Factor Arrows
217,525,632
Factor Arrows
28,762,816
Factor Arrows
24,381,408
Factor Arrows
22,190,704
Factor Arrows
21,095,352
Factor Arrows
2547,676
Factor Arrows
2273,838
Factor Arrows
2136,919
Factor Arrows
235,953

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, 23, 5953

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 23 x 5,953 = 140,205,056

This can also be written as 210 x 231 x 5,9531 = 140,205,056

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


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