Q: What are the prime factors of the number 642,340,552?

 A: 2, 7, 59, 194413

Why are those the prime factors of the number 642,340,552?

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 642,340,552

642,340,552
Factor Arrows
2321,170,276
Factor Arrows
2160,585,138
Factor Arrows
280,292,569
Factor Arrows
711,470,367
Factor Arrows
59194,413

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, 7, 59, 194413

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 59 x 194,413 = 642,340,552

This can also be written as 23 x 71 x 591 x 194,4131 = 642,340,552

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


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